[ci] feat: try to skip buildcache

.gitea/workflows/build.yaml

@@ -31,7 +31,7 @@ jobs:
       - name: 'Build and Publish'
         uses: 'docker/build-push-action@v6'
         with:
-          build-args: 'CACHE_DATE=$(`date +%Y-%m-%d:%H:%M:%S`)' 
+          build-args: 'GITEA_SHA=${{ gitea.sha }}' 
           context: '.'
           file: 'Dockerfile.linux.amd64'
           push: true

Dockerfile.linux.amd64

@@ -1,8 +1,8 @@
 FROM cr.simoncor.net/siempie/hugo-sws:latest
 
 # build cache date argument trick
-ARG CACHE_DATE=2017-04-29
-RUN echo $CACHE_DATE
+ARG GITEA_SHA=some_sha
+RUN echo $GITEA_SHA
 
 # clone site and template
 RUN set -e \