fix: update Release Please to googleapis action and correct configuration

- Change to googleapis/[email protected] (google-github-actions version is deprecated)
- Add workflow_dispatch trigger for manual runs
- Update manifest version to 1.9.0 (current released version)
- Clarify in docs that git tag is created after Release PR merge, not during PR creation

Co-authored-by: dlevy-msft-sql <[email protected]>

Author: Copilot

.github/workflows/release-please.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+  workflow_dispatch:
 
 permissions:
   contents: write
@@ -14,8 +15,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # Pinned to commit SHA for supply chain security (CWE-829)
-      # Verify: gh api repos/google-github-actions/release-please-action/git/ref/tags/v4.1.1 --jq '.object.sha'
-      - uses: google-github-actions/release-please-action@e4dc86ba9405554aeba3c6bb2d169500e7d3b4ee # v4.1.1
+      # Verify: gh api repos/googleapis/release-please-action/git/ref/tags/v4.1.3 --jq '.object.sha'
+      - uses: googleapis/release-please-action@7987652d64b4581673a76e33ad5e98e3dd56832f # v4.1.3
         with:
           command: manifest
           config-file: release-please-config.json

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "0.0.0"
+  ".": "1.9.0"
 }

CONTRIBUTING.md

@@ -114,8 +114,8 @@ test: add integration tests for query command
 4. **Release Please creates/updates a Release PR** that:
    - Bumps version in relevant files
    - Updates CHANGELOG.md
-   - Tags the release
 5. **Review and merge the Release PR** - This triggers:
+   - Creation of a git tag for the new version
    - Creation of a GitHub Release
    - Publishing of release artifacts