Bump github/codeql-action from 2 to 3 (#52)

Bumps [github/codeql-action](https://github.com/github/codeql-action) from 2 to 3.
- [Release notes](https://github.com/github/codeql-action/releases)
- [Changelog](https://github.com/github/codeql-action/blob/main/CHANGELOG.md)
- [Commits](github/codeql-action@v2...v3)

---
updated-dependencies:
- dependency-name: github/codeql-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/postmerge.yaml

@@ -11,11 +11,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: github/codeql-action/init@v2
+    - uses: github/codeql-action/init@v3
       with:
         languages: go
-    - uses: github/codeql-action/autobuild@v2
-    - uses: github/codeql-action/analyze@v2
+    - uses: github/codeql-action/autobuild@v3
+    - uses: github/codeql-action/analyze@v3
   scorecard:
     runs-on: ubuntu-latest
     steps:
@@ -29,6 +29,6 @@ jobs:
         name: SARIF file
         path: results.sarif
         retention-days: 5
-    - uses: github/codeql-action/upload-sarif@v2
+    - uses: github/codeql-action/upload-sarif@v3
       with:
         sarif_file: results.sarif