Fix invalid identifier.

Author: jsirois

.github/workflows/update-certifi-cacert.pem.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - name: Noop
         run: "true"
-  update-cacert.pem:
+  update-cacert-pem:
     name: Maybe generate certifi cacert.pem update PR
     needs: org-check
     runs-on: ubuntu-22.04