fix(ci): remove jq version rewrite, add META.json check to release skill (#52)

The pgxn-tools container doesn't have jq. Instead, META.json will be
bumped manually before tagging (matching pg_clickhouse convention).
Updated the create-new-release skill to verify META.json version
matches the new tag before pushing.

Author: amogiska

.claude/skills/create-new-release/SKILL.md

@@ -26,20 +26,23 @@ Create and push a new semantic version release tag.
    - **minor**: `v1.2.3` → `v1.3.0`
    - **major**: `v1.2.3` → `v2.0.0`
 
-5. **Validate current commit exists on remote**:
+5. **Verify META.json version matches the new tag**:
+   Read `META.json` and check that both `version` and `provides.pg_stat_ch.version` match the new version (without the `v` prefix). If they don't match, abort and tell the user to update `META.json` first — PGXN uses this file for the release version.
+
+6. **Validate current commit exists on remote**:
    ```bash
    git fetch origin
    git branch -r --contains HEAD
    ```
    If no remote branch contains HEAD, abort with an error asking the user to push their commits first.
 
-6. **Create and push the tag**:
+7. **Create and push the tag**:
    ```bash
    git tag -a <new_version> -m "Release <new_version>"
    git push origin <new_version>
    ```
 
-7. **Report success** with the new tag name.
+8. **Report success** with the new tag name.
 
 ## Version Parsing
 

.github/workflows/pgxn.yml

@@ -10,12 +10,6 @@ jobs:
       - name: Check out the repo
         uses: actions/checkout@v4
         with: { submodules: recursive, fetch-depth: 0 }
-      - name: Set version from tag
-        if: startsWith( github.ref, 'refs/tags/v' )
-        run: |
-          VERSION="${GITHUB_REF#refs/tags/v}"
-          jq --arg v "$VERSION" '.version = $v | .provides.pg_stat_ch.version = $v' META.json > META.tmp
-          mv META.tmp META.json
       - name: Bundle the Release
         env: { GIT_ARCHIVE_CMD: archive-all }
         id: bundle