Adjust Metalava SemVer task

[emilypgoogle]

Reverses the order in which branches and comparisons are done. This will mean the actual test behavior lags behind by one commit, so to test this I will open a PR to this branch not to be merged with example changes.

See test success here #6849

[github-actions]

📝 PRs merging into main branch

Our main branch should always be in a releasable state. If you are working on a larger change, or if you don't want this change to see the light of the day just yet, consider using a feature branch first, and only merge into the main branch when the code complete and ready to be released.

[github-actions]

Test Results

 1 034 files  +   992   1 034 suites  +992   34m 23s ⏱️ + 33m 0s
 5 874 tests + 5 550   5 852 ✅ + 5 528  22 💤 +22  0 ❌ ±0 
11 811 runs  +11 151  11 767 ✅ +11 107  44 💤 +44  0 ❌ ±0 

Results for commit 6be5158. ± Comparison against base commit 5081e7c.

♻️ This comment has been updated with latest results.

[google-oss-bot]

Coverage Report ¹

Affected Products

• firebase-messaging

  Overall coverage changed from 84.13% (d7a56a1) to 84.02% (8b53375) by -0.11%.

  Filename	Base (d7a56a1)	Merge (8b53375)	Diff
  Metadata.java	41.27%	36.51%	-4.76%

• firebase-ml-modeldownloader

  Overall coverage changed from 82.04% (d7a56a1) to 82.11% (8b53375) by +0.06%.

  Filename	Base (d7a56a1)	Merge (8b53375)	Diff
  FirebaseModelDownloader.java	84.05%	84.66%	+0.61%

• firebase-database

  Filename	Base (d7a56a1)	Merge (8b53375)	Diff
  ChildChangeAccumulator.java	83.33%	96.67%	+13.33%
  DoubleNode.java	100.00%	88.24%	-11.76%
  ViewProcessor.java	92.10%	91.79%	-0.30%
  WriteTree.java	77.22%	76.67%	-0.56%

Test Logs

• Base (d7a56a1): https://github.com/firebase/firebase-android-sdk/actions/runs/14364028473
• Merge (8b53375): https://github.com/firebase/firebase-android-sdk/actions/runs/14367284511

1. https://storage.googleapis.com/firebase-sdk-metric-reports/tdWpK7K5Gm.html

[google-oss-bot]

Size Report ¹

Affected Products

No changes between base commit (d7a56a1) and merge commit (8b53375).

Test Logs

• Base (d7a56a1): https://github.com/firebase/firebase-android-sdk/actions/runs/14364028473
• Merge (8b53375): https://github.com/firebase/firebase-android-sdk/actions/runs/14367284511

1. https://storage.googleapis.com/firebase-sdk-metric-reports/0HoVCOpKhW.html

[google-oss-bot]

Startup Time Report ¹

The report is too large (122,594 chars) to be displayed on GitHub. Please check this report on GCS.

1. https://storage.googleapis.com/firebase-sdk-metric-reports/lEQ1ELqjMO/index.html

[github-actions]

plugins test results

68 tests   68 ✅  1m 10s ⏱️
12 suites   0 💤
12 files     0 ❌

Results for commit 6be5158.

♻️ This comment has been updated with latest results.