DO NOT MERGE: CAS-S3 test GC interval 120s (CI experiment)

[DimensionWieldr]

Throwaway experiment. Do not merge.

Third point on the GC-interval curve for ASan CAS-S3 stateless shards. The test-disk override is 5s; this PR sets cas_gc_interval_sec to 120.

Already measured:

Setting	PR	ASan 1/2	ASan 2/2
5s (test default)	MasterCI 32969478793	6h timeout at 78%	6h timeout at 78%
60s (product default)	#2296	3h14m, OOM storm	2h59m, OOM storm
GC off	#2297	2h07m, no OOM	2h51m, pass

Compare wall time of:

• Stateless tests (amd_asan_ubsan, cas s3 storage, parallel, 1/2)
• Stateless tests (amd_asan_ubsan, cas s3 storage, parallel, 2/2)

Related: #2298
Related: #2299
Related: #2296
Related: #2297

Changelog category (leave one):

• Not for changelog (changelog entry is not required)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Not for changelog.

Documentation entry for user-facing changes

• No

CI/CD Options

Exclude tests:

• Fast test
• Integration Tests
• Stateless tests
• Stateful tests
• Unit tests
• Performance tests
• Aarch64 tests
• All with ASAN
• All with TSAN
• All with MSAN
• All with UBSAN
• All with Coverage
• All Regression
• Disable CI Cache
• Debug
• Binary
• Distributed plan
• Azure
• Sequential
• Fuzzer
• BuzzHouse
• Stress
• Quick functional tests
• Install packages
• Compatibility check

Regression jobs to run:

• Fast suites (mostly <1h)
• Aggregate Functions (2h)
• Alter (1.5h)
• Benchmark (30m)
• CAS (content-addressed storage; Antalya only)
• ClickHouse Keeper (1h)
• Iceberg (2h)
• LDAP (1h)
• OAuth (5m)
• Parquet (1.5h)
• RBAC (1.5h)
• SSL Server (1h)
• S3 (2h)
• S3 Export (2h)
• Swarms (30m)
• Tiered Storage (2h)

[github-actions]

Workflow [PR], commit [21510c7]