ci(action): update amannn/action-semantic-pull-request action to v6

Author: descope[bot]

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
       pull-requests: read
     steps:
       - name: Validate PR title
-        uses: amannn/action-semantic-pull-request@0723387faaf9b38adef4775cd42cfd5155ed6017 # v5.5.3
+        uses: amannn/action-semantic-pull-request@48f256284bd46cdaab1048c3721360e808335d50 # v6.1.1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with: