chore(ci): Add required checks job for UI tests

[philprime]

📜 Description

This PR migrates the ui-tests.yml workflow to use dorny/paths-filter for conditional execution and introduces a dedicated required check job.

Specifically, it:

• Adds a run_ui_tests_for_prs filter to .github/file-filters.yml with relevant paths.
• Removes the on.pull_request.paths filter from ui-tests.yml.
• Introduces a files-changed job to detect relevant file modifications.
• Makes the main UI test jobs conditional based on the files-changed output.
• Adds a ui_tests-required-check job that always runs and acts as the single required check for branch protection, failing if any dependent UI test job fails or is cancelled.

💡 Motivation and Context

This change is part of a larger initiative to migrate all workflows using on.[event].paths filtering to dorny/paths-filter and enforce required checks more effectively. See #5951 for full context.

The goal is to ensure UI tests:

• Always run for schedule and workflow_dispatch events.
• Run conditionally for pull requests only when relevant files change, improving CI efficiency.
• Provide a reliable required check (ui_tests-required-check) that can be used in branch protection rules.

This implementation follows the pattern established in the auto-update-tools workflow and referenced in #5893.

Fixes #6032

💚 How did you test it?

The changes were verified by the assistant against the specified requirements and the auto-update-tools workflow pattern.

📝 Checklist

You have to check all boxes before merging:

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

#skip-changelog

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[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
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[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1212.33 ms	1238.80 ms	26.46 ms
Size	23.75 KiB	933.04 KiB	909.29 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
3cdbc22	1231.63 ms	1251.06 ms	19.43 ms
2a9a505	1221.49 ms	1238.49 ms	17.00 ms
884b224	1221.11 ms	1255.88 ms	34.77 ms
4e3915a	1230.02 ms	1258.90 ms	28.88 ms
b9aacb6	1230.42 ms	1251.00 ms	20.58 ms
3ec47ae	1231.02 ms	1256.67 ms	25.65 ms
1fe932f	1231.92 ms	1253.44 ms	21.52 ms
a2a3bfb	1227.94 ms	1261.26 ms	33.32 ms
1339919	1214.82 ms	1238.98 ms	24.16 ms
51b7dd3	1235.06 ms	1258.21 ms	23.15 ms

App size

Revision	Plain	With Sentry	Diff
3cdbc22	23.75 KiB	928.14 KiB	904.40 KiB
2a9a505	23.75 KiB	874.46 KiB	850.71 KiB
884b224	23.75 KiB	879.55 KiB	855.80 KiB
4e3915a	23.75 KiB	858.69 KiB	834.94 KiB
b9aacb6	23.75 KiB	913.64 KiB	889.89 KiB
3ec47ae	23.75 KiB	919.88 KiB	896.13 KiB
1fe932f	23.75 KiB	913.63 KiB	889.88 KiB
a2a3bfb	23.75 KiB	872.67 KiB	848.92 KiB
1339919	23.75 KiB	919.70 KiB	895.95 KiB
51b7dd3	23.75 KiB	913.26 KiB	889.52 KiB

[philipphofmann]

I'm unsure if the UITests are stable enough already, so we can enforce this.

[philprime]

@philipphofmann this PR is only here to add the job so we have it as soon as we get UI tests stable. I do not want them to be enforced.

[philipphofmann]

LGTM