.github: debug 2

Author: troglobit

.github/workflows/docs.yml

@@ -89,7 +89,7 @@ jobs:
           fi
 
           SRC_REPO="${GITHUB_REPOSITORY}"
-          SRC_REF="$(git rev-parse --short HEAD)"
+          SRC_REF="${GITHUB_SHA::7}"
           SRC_URL="https://github.com/${SRC_REPO}/commit/${SRC_REF}"
 
           git -C pages config user.name "GitHub Actions"