fix: conventional commits for PR titles

.github/workflows/conventional_commits.yml

@@ -15,11 +15,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - name: Validate
-        uses: CondeNast/conventional-pull-request-action@v0.2.0
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          commitlintRulesPath: "./commitlint.config.js"
-          commitTitleMatch: "false"
-          ignoreCommits: "false"
+      - name: Install commitlint
+        run: |
+          npm install @commitlint/cli @commitlint/config-conventional
+      - name: Fetch merge commit message
+        id: merge_commit
+        run: |
+          MERGE_COMMIT_MESSAGE=$(git log --merges -n 1 --pretty=format:"%s")
+          echo "::set-output name=message::$MERGE_COMMIT_MESSAGE"
+      - name: Validate merge commit message
+        run: |
+          echo "${{ steps.merge_commit.outputs.message }}" | npx commitlint