#2186: create obsidian url updater

[JoelAdbu]

This PR fixes #2186

Implemented changes:

1. Add Obsidian URL updater.
2. Generate platform-specific download URLs from Obsidian GitHub releases.
3. Add integration test and mocked release data.

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Testing instructions

Please add conscise, understandable instructions on how a reviewer can test/verify the functionality of your contribution here:

1. Run mvn clean test.
2. Verify that ObsidianUrlUpdaterTest passes.

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Checklist for this PR

Make sure everything is checked before merging this PR. For further info please also see
our DoD.

• When running mvn clean test locally all tests pass and build is successful
• PR title is of the form #«issue-id»: «brief summary» (e.g. #921: fixed setup.bat). If no issue ID exists, title only.
• PR top-level comment summarizes what has been done and contains link to addressed issue(s)
• PR and issue(s) have suitable labels
• Issue is set to In Progress and assigned to you or there is no issue (might happen for very small PRs)
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  with internal
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[vivu001]

I’ve run the tests and everything passed successfully. The implementation looks good and follows a proper approach.
LGTM 👍

One minor remark: please update the changelog before merging.

[coveralls]

Coverage Report for CI Build 30427116131

Coverage decreased (-0.001%) to 72.592%

Details

• Coverage decreased (-0.001%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 24 coverage regressions across 2 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

24 previously-covered lines in 2 files lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/url/updater/UpdateManager.java	23	0.0%
com/devonfw/tools/ide/tool/ide/IdeToolCommandlet.java	1	78.33%

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Coverage Stats

Relevant Lines:	17014
Covered Lines:	12877
Line Coverage:	75.68%
Relevant Branches:	7603
Covered Branches:	4993
Branch Coverage:	65.67%
Branches in Coverage %:	Yes
Coverage Strength:	3.21 hits per line

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💛 - Coveralls