build(deps): bump peter-evans/create-pull-request from 3 to 6

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 3 to 6.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@v3...v6)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/py312-sync-cpython.yml

@@ -41,7 +41,7 @@ jobs:
 
       - name: Create Pull Request
         id: cpr
-        uses: peter-evans/create-pull-request@v3
+        uses: peter-evans/create-pull-request@v6
         with:
           token: ${{ steps.generate-token.outputs.token }}
           commit-message: sync with cpython ${{ env.LATEST_COMMIT_ID }}