Closes #19351: Pin 3rd party GitHub actions to commit hash

.github/workflows/lock-threads.yml

@@ -16,7 +16,7 @@ jobs:
     if: github.repository == 'netbox-community/netbox'
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v5
+      - uses: dessant/lock-threads@1bf7ec25051fe7c00bdd17e6a7cf3d7bfb7dc771 # v5.0.1
         with:
           issue-inactive-days: 90
           pr-inactive-days: 30

.github/workflows/update-translation-strings.yml

@@ -48,7 +48,7 @@ jobs:
       run: python netbox/manage.py makemessages -l ${{ env.LOCALE }}
 
     - name: Commit changes
-      uses: EndBug/add-and-commit@v9
+      uses: EndBug/add-and-commit@a94899bca583c204427a224a7af87c02f9b325d5 # v9.1.4
       with:
         add: 'netbox/translations/'
         default_author: github_actions