Update verify steps in pipeline

Author: leaanthony

.github/workflows/pr-v2.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Verify Changed files
-        uses: tj-actions/verify-changed-files@v17
+        uses: step-security/changed-files@3dbe17c78367e7d60f00d78ae6781a35be47b4a1 # v45.0.1
         id: verify-changed-files
         with:
           files: |

.github/workflows/upload-source-documents.yml

@@ -15,7 +15,7 @@ jobs:
 
       - name: Verify Changed files
         id: changed-files
-        uses: tj-actions/changed-files@v41
+        uses: step-security/changed-files@3dbe17c78367e7d60f00d78ae6781a35be47b4a1 # v45.0.1
         with:
           files: |
             website/**/*.mdx