Replace unpinned actions with pinned action

.github/workflows/pr-check.yml

@@ -1,33 +1,31 @@
 name: Pull Request Validation
-
 on:
   pull_request:
-    types: [ opened, edited, reopened ]
-
+    types: [opened, edited, reopened]
 jobs:
   check-pr-content:
     runs-on: ubuntu-latest
     if: ${{ github.actor != 'dependabot[bot]' && github.actor != 'stacklokbot[bot]' }}
     steps:
       - name: Check PR for Change Type Selection
-        uses: actions/github-script@v7
+        uses: actions/github-script@5c56fde4671bc2d3592fb0f2c5b5bab9ddae03b1 # v7
         with:
           script: |
             const pr = context.payload.pull_request;
-            
+
             if (!pr) {
               console.log('This action must be run on a pull request event.');
               core.setFailed('No pull request data found.');
               return;
             }
-            
+
             const prNumber = pr.number;
             const body = pr.body;
-            
+
             console.log(`Processing PR #${prNumber}`);
-            
+
             const changeTypeRegex = /\- \[[xX]\] (Bug fix|Feature|Breaking change|Documentation)/;
-            
+
             if (!changeTypeRegex.test(body)) {
               core.setFailed("You must select at least one Change Type.");
             }