* Using extends in builder jobs

Ideally this fixes the builder/deploy pipeline for pages but
this is still  experimental

.gitlab-ci.yml

@@ -8,13 +8,15 @@ stages:
 include:
   - local: 'ci/builders.yml'
 
-build-neocities: &builder
+build-neocities:
   stage: build
+  extends: .builder
   script:
     - hugo --config configs/neocities.toml
 
-build-pages: &builder
+build-pages:
   stage: build
+  extends: .builder
   script:
     - hugo --config configs/pages.toml