Replacing version with sha

Author: leandrodamascena

.github/workflows/record_pr.yml

@@ -16,7 +16,7 @@ jobs:
           script: |
             const script = require('.github/scripts/save_pr_details.js')
             await script({github, context, core})
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@6f51ac03b9356f520e9adb1b1b7802705f340c2b # v4.5.0
         with:
           name: pr
           path: pr.txt