Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -1,18 +1,10 @@
-# The Docker image that will be used to build your app
-image: rust:latest
-create-pages:
+image: ghcr.io/myriad-dreamin/shiroa:v0.3.0
+
 pages:
-    # The folder that contains the files to be exposed at the Page URL
-    publish: public
+  script:
+      - shiroa build --dest-dir public
   artifacts:
     paths:
       - public
   rules:
-    # This ensures that only pushes to the default branch will trigger
-    # a pages deploy
-    - if: $CI_COMMIT_BRANCH == "main"
-  # Functions that should be executed before the build script is run
-  before_script:
-    - cargo install --git https://github.com/Myriad-Dreamin/shiroa --locked shiroa
-  script:
-    - shiroa build -d public
+    - if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH