ci: use latest pr title when validating in pr checks workflow

.github/workflows/pull_request_checks.yml

@@ -30,8 +30,20 @@ jobs:
         uses: actions/checkout@v4
       - name: "🔧 Setup"
         uses: ./.github/actions/use-dependencies
+      - name: "📥 Get PR Title"
+        id: get_pr_title
+        uses: actions/github-script@v7
+        with:
+          result-encoding: string
+          script: |
+            const { data } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: context.payload.pull_request.number
+            });
+            return data.title;
       - name: "✅ Validate"
-        run: echo "${{ github.event.pull_request.title }}" | yarn commitlint
+        run: echo "${{ steps.get_pr_title.outputs.result }}" | yarn commitlint
 
   lint:
     name: "Lint"