feat(mongodbflex): migrate to v2 API

[SerseusWasTaken]

Description

Migrates mongodbflex to V2 API

relates to STACKITCLI-379

Checklist

• Issue was linked above
• Code format was applied: make fmt
• Examples were added / adjusted (see e.g. here)
• Docs are up-to-date: make generate-docs (will be checked by CI)
• Unit tests got implemented or updated
• Unit tests are passing: make test (will be checked by CI)
• No linter issues: make lint (will be checked by CI)

[github-actions]

Merging this branch changes the coverage (2 decrease, 2 increase)

Impacted Packages	Coverage Δ	🤖
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/describe	60.38% (+1.55%)	👍
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/list	42.11% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/restore	34.67% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/restore-jobs	54.00% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/schedule	66.04% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/update-schedule	73.20% (+3.08%)	👍
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/create	59.60% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/delete	26.83% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/describe	54.41% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/list	57.45% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/update	64.34% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/options	60.42% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/create	58.82% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/delete	37.50% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/describe	70.45% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/list	60.00% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/reset-password	48.94% (ø)
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/update	45.65% (-1.16%)	👎
github.com/stackitcloud/stackit-cli/internal/pkg/services/mongodbflex/client	0.00% (ø)
github.com/stackitcloud/stackit-cli/internal/pkg/services/mongodbflex/utils	83.78% (-0.22%)	👎

---

Coverage by file

Changed files (no unit tests)

Changed File	Coverage Δ	Total	Covered	Missed	🤖
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/describe/describe.go	60.38% (+1.55%)	53 (+2)	32 (+2)	21	👍
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/list/list.go	42.11% (ø)	57	24	33
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/restore-jobs/restore_jobs.go	54.00% (ø)	50	27	23
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/restore/restore.go	34.67% (ø)	75	26	49
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/schedule/schedule.go	66.04% (ø)	53	35	18
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/update-schedule/update_schedule.go	73.20% (+3.08%)	97 (+10)	71 (+10)	26	👍
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/create/create.go	59.60% (ø)	99	59	40
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/delete/delete.go	26.83% (ø)	41	11	30
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/describe/describe.go	54.41% (ø)	68	37	31
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/list/list.go	57.45% (ø)	47	27	20
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/update/update.go	64.34% (ø)	129	83	46
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/options/options.go	60.42% (ø)	96	58	38
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/create/create.go	58.82% (ø)	51	30	21
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/delete/delete.go	37.50% (ø)	40	15	25
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/describe/describe.go	70.45% (ø)	44	31	13
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/list/list.go	60.00% (ø)	50	30	20
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/reset-password/reset_password.go	48.94% (ø)	47	23	24
github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/update/update.go	45.65% (-1.16%)	46 (-1)	21 (-1)	25	👎
github.com/stackitcloud/stackit-cli/internal/pkg/services/mongodbflex/client/client.go	0.00% (ø)	1	0	1
github.com/stackitcloud/stackit-cli/internal/pkg/services/mongodbflex/utils/utils.go	83.78% (-0.22%)	74 (-1)	62 (-1)	12	👎

Please note that the "Total", "Covered", and "Missed" counts above refer to code statements instead of lines of code. The value in brackets refers to the test coverage of that file in the old version of the code.

Changed unit test files

• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/describe/describe_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/list/list_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/restore-jobs/restore_jobs_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/restore/restore_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/schedule/schedule_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/backup/update-schedule/update_schedule_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/create/create_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/delete/delete_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/describe/describe_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/list/list_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/instance/update/update_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/options/options_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/create/create_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/delete/delete_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/describe/describe_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/list/list_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/reset-password/reset_password_test.go
• github.com/stackitcloud/stackit-cli/internal/cmd/mongodbflex/user/update/update_test.go
• github.com/stackitcloud/stackit-cli/internal/pkg/services/mongodbflex/utils/utils_test.go