build(deps): bump Namchee/conventional-pr

Bumps the github-actions-dependencies group with 1 update: [Namchee/conventional-pr](https://github.com/namchee/conventional-pr).


Updates `Namchee/conventional-pr` from 0.15.4 to 0.15.5
- [Release notes](https://github.com/namchee/conventional-pr/releases)
- [Commits](Namchee/conventional-pr@v0.15.4...v0.15.5)

---
updated-dependencies:
- dependency-name: Namchee/conventional-pr
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: github-actions-dependencies
...

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

.github/workflows/conv-pull-requests.yml

@@ -13,6 +13,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: conventional-pr
-        uses: Namchee/conventional-pr@v0.15.4
+        uses: Namchee/conventional-pr@v0.15.5
         with:
           access_token: ${{ secrets.GITHUB_TOKEN }}