Fix: use correct image tag for Hugo build

.gitlab-ci.yml

@@ -1,16 +1,15 @@
-# Use a specific version tag to bypass 'latest' caching issues
-image: klakegg/hugo:ext-alpine
-
 variables:
   HUGO_ENV: production
-  # Blowfish often requires submodules, so we ensure they are fetched
   GIT_SUBMODULE_STRATEGY: recursive
 
 pages:
+  # This image is compatible with GitLab's shell-based runners
+  image: registry.gitlab.com/pages/hugo/hugo_extended:latest
   script:
+    - hugo version
     - hugo
   artifacts:
     paths:
       - public
   rules:
-    - if: $CI_COMMIT_BRANCH == $CI_COMMIT_REF_NAME
+    - if: $CI_COMMIT_BRANCH == "master"