Fix comment

Co-authored-by: Stan Ulbrych <stan@python.org>

Author: hugovk

.github/workflows/check-for-updates.yml

@@ -43,7 +43,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           fetch-depth: 1  # Shallow clone to save time
-          persist-credentials: true  # Needed to push the tag
+          persist-credentials: true  # Needed to push the update
 
       - name: Set up Python 3.12
         uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0