ci: run the live GitHub tests on every pull request and push

[roxblnfk]

🔍 What was changed

• The Live GitHub job runs on pull requests and pushes to 3.x, not only on workflow_dispatch; it carries no matrix expression in its name anymore.
• The DLoad version registry (DLOAD_CACHE_DIR) is kept between runs with actions/cache, keyed per OS and run with a per-OS restore-keys fallback; the job prints the GITHUB_TOKEN API usage before and after the tests.
• The live suite also checks that a plain rr get resolves to the 3.x line rather than a calendar version, and that rr versions reads the real releases. Assertions hold for any future release.

Why?

• Live tests caught nothing while they ran only by hand. A job costs about 6 API requests (5 with a warm registry), far below the 1000 requests per hour of GITHUB_TOKEN.

Review notes

• rr get always passes --refresh to DLoad, and this stays: with a warm registry a refresh costs one request (the newest page) instead of zero, and older pages still come from the cache. Without the refresh the live job would test the cache, not GitHub.
• rr versions uses its own client and bypasses the registry: 2 requests per run.

Checklist

• How was this tested:
  • Live suite run locally with RR_CLI_LIVE_TESTS=1; request count measured from DLoad's -vvv log, cold and warm registry
  • Unit, Acceptance, Psalm and php-cs-fixer pass locally

Summary by CodeRabbit

• Tests
  • Expanded live GitHub checks to verify the default Linux download reports a valid release version and that release compatibility information is reported correctly.
  • Live acceptance checks now run for all workflow-triggering events, and API usage is reported before and after testing.

[coderabbitai]

Note

Currently processing new changes in this PR. This may take a few minutes, please wait...

⚙️ Run configuration

• Configuration used: defaults
• Review profile: CHILL
• Plan: Advanced
• Run ID: 1ece486c-677f-446a-8ea2-c8e54e37ba5b

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📥 Commits

Reviewing files that changed from the base of the PR and between d38492e and 37a5c15.

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📒 Files selected for processing (2)

• .github/workflows/acceptance.yml
• tests/Live/GitHubTest.php

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