[devops] Make the API diff pipeline use a pr: trigger.

[rolfbjarne]

Unfortunately Azure DevOps doesn't properly report GitHub checks for pipelines
triggered by another pipeline, when that other pipeline was triggered from a
pr trigger.

So go back to triggering the API diff pipeline using a pr: trigger.

This effectively reverts #21880 ("[CI] Make the API diff be triggered as soon as the config of the build is done.")

References:

• https://stackoverflow.com/questions/78443654/reporting-stage-statuses-to-github-for-pipeline-triggered-by-another-pipeline

[Copilot]

Pull request overview

Adjusts the API diff Azure DevOps pipelines to use direct PR/CI triggers (instead of being triggered by another pipeline) so that GitHub check statuses are reported correctly.

Changes:

• Switch run-pr-api-diff.yml back to a pr: trigger with branch/path filters.
• Switch run-ci-api-diff.yml to a direct trigger: with branch/path filters, removing the pipeline-resource stage trigger.

Reviewed changes

Copilot reviewed 1 out of 1 changed files in this pull request and generated no comments.

File	Description
tools/devops/automation/run-pr-api-diff.yml	Reverts PR API diff execution to a pr: trigger with path exclusions.
tools/devops/automation/run-ci-api-diff.yml	Moves CI API diff execution to a direct branch/path trigger: instead of a pipeline-resource trigger.

[vs-mobiletools-engineering-service2]

✅ [PR Build #eff2331] Build passed (Build packages) ✅

Pipeline on Agent
Hash: eff2331741872cedb8793b41cee4b127a46c289e [PR build]

[vs-mobiletools-engineering-service2]

✅ [PR Build #eff2331] Build passed (Detect API changes) ✅

Pipeline on Agent
Hash: eff2331741872cedb8793b41cee4b127a46c289e [PR build]

[vs-mobiletools-engineering-service2]

✅ API diff for current PR / commit

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

✅ API diff vs stable

NET (empty diffs)

• iOS: vsdrops gist ( No breaking changes )
• tvOS: vsdrops gist ( No breaking changes )
• MacCatalyst: vsdrops gist ( No breaking changes )
• macOS: vsdrops gist ( No breaking changes )

ℹ️ Generator diff

Generator Diff: vsdrops (html) vsdrops (raw diff) gist (raw diff) - Please review changes)

Pipeline on Agent
Hash: eff2331741872cedb8793b41cee4b127a46c289e [PR build]

[vs-mobiletools-engineering-service2]

✅ [CI Build #eff2331] Build passed (Build macOS tests) ✅

Pipeline on Agent
Hash: eff2331741872cedb8793b41cee4b127a46c289e [PR build]

[vs-mobiletools-engineering-service2]

🚀 [CI Build #eff2331] Test results 🚀

Test results

✅ All tests passed on VSTS: test results.

🎉 All 156 tests passed 🎉

Tests counts

✅ cecil: All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (iOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (MacCatalyst): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (macOS): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (Multiple platforms): All 1 tests passed. Html Report (VSDrops) Download
✅ dotnettests (tvOS): All 1 tests passed. Html Report (VSDrops) Download
✅ framework: All 2 tests passed. Html Report (VSDrops) Download
✅ fsharp: All 4 tests passed. Html Report (VSDrops) Download
✅ generator: All 5 tests passed. Html Report (VSDrops) Download
✅ interdependent-binding-projects: All 4 tests passed. Html Report (VSDrops) Download
✅ introspection: All 6 tests passed. Html Report (VSDrops) Download
✅ linker: All 44 tests passed. Html Report (VSDrops) Download
✅ monotouch (iOS): All 11 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ monotouch (MacCatalyst): All 15 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ monotouch (macOS): All 12 tests passed. Html Report (VSDrops) Download
✅ monotouch (tvOS): All 11 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ msbuild: All 2 tests passed. Html Report (VSDrops) Download
✅ sharpie: All 1 tests passed. Html Report (VSDrops) Download
✅ windows: All 3 tests passed. [attempt 3] Html Report (VSDrops) Download
✅ xcframework: All 4 tests passed. [attempt 2] Html Report (VSDrops) Download
✅ xtro: All 1 tests passed. Html Report (VSDrops) Download

macOS tests

✅ Tests on macOS Monterey (12): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Ventura (13): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Sonoma (14): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Sequoia (15): All 5 tests passed. Html Report (VSDrops) Download
✅ Tests on macOS Tahoe (26): All 5 tests passed. Html Report (VSDrops) Download

Linux Build Verification

✅ Linux build succeeded

Pipeline on Agent
Hash: eff2331741872cedb8793b41cee4b127a46c289e [PR build]