chore(gitlab-ci): format for valid YAML anchor syntax

[skip ci]

.gitlab-ci.yml

@@ -23,35 +23,41 @@ variables:
 
 .shared_caches:
   # Cache for front related jobs
-  front_cache: &front_cache
-    - key: front-yarn
+  yarn_cache: &yarn_cache
+    key: front-yarn-$CI_COMMIT_REF_SLUG
     paths: [$YARN_CACHE_FOLDER]
-    - key:
-        prefix: front-node_modules
+  node_cache: &node_cache
+    key:
+      prefix: front-node_modules-$CI_COMMIT_REF_SLUG
       files: [front/yarn.lock]
     paths: [front/node_modules]
-    - key:
-        prefix: front-lint
+  lint_cache: &lint_cache
+    key:
+      prefix: front-lint-$CI_COMMIT_REF_SLUG
       files:
         - front/.eslintcache
         - front/tsconfig.tsbuildinfo
+  cypress_cache: &cypress_cache
+    key: cypress-cache-$CI_COMMIT_REF_SLUG
+    paths:
+      - /root/.cache/Cypress
 
   # Cache for api related jobs
   # Include the python version to prevent loosing caches in the test matrix
   api_cache: &api_cache
-    - key: api-pip-$PYTHON_VERSION
+    - key: api-pip-$CI_COMMIT_REF_SLUG
       paths: [$PIP_CACHE_DIR]
     - key:
-        prefix: api-venv-$PYTHON_VERSION
+        prefix: api-venv-$CI_COMMIT_REF_SLUG
         files: [api/poetry.lock]
       paths: [api/.venv]
 
   # Cache for docs related jobs
   docs_cache: &docs_cache
-    - key: docs-pip
+    - key: docs-pip-$CI_COMMIT_REF_SLUG
       paths: [$PIP_CACHE_DIR]
     - key:
-        prefix: docs-venv
+        prefix: docs-venv-$CI_COMMIT_REF_SLUG
         files: [docs/poetry.lock]
       paths: [docs/.venv]
 
@@ -97,7 +103,10 @@ review_front:
   environment:
     name: review/front/$CI_COMMIT_REF_NAME
     url: http://$CI_PROJECT_NAMESPACE.pages.funkwhale.audio/-/$CI_PROJECT_NAME/-/jobs/$CI_JOB_ID/artifacts/front-review/index.html
-  cache: *front_cache
+  cache:
+    - *yarn_cache
+    - *node_cache
+    - *lint_cache
   before_script:
     - mkdir front-review
     - cd front
@@ -191,7 +200,10 @@ lint_front:
     - changes: [front/**/*]
 
   image: $CI_REGISTRY/funkwhale/ci/node-python:18
-  cache: *front_cache
+  cache:
+    - *yarn_cache
+    - *node_cache
+    - *lint_cache
   before_script:
     - cd front
     - yarn install --frozen-lockfile
@@ -276,7 +288,10 @@ test_front:
     - changes: [front/**/*]
 
   image: $CI_REGISTRY/funkwhale/ci/node-python:18
-  cache: *front_cache
+  cache:
+    - *yarn_cache
+    - *node_cache
+    - *lint_cache
   before_script:
     - cd front
     - yarn install --frozen-lockfile
@@ -317,10 +332,11 @@ test_integration:
     name: cypress/included:13.6.4
     entrypoint: ['']
   cache:
-    - *front_cache
-    - key:
-      paths:
-        - /root/.cache/Cypress
+    - *yarn_cache
+    - *node_cache
+    - *lint_cache
+    - *cypress_cache
+
   before_script:
     - cd front
     - yarn install
@@ -402,7 +418,10 @@ build_front:
   variables:
     <<: *keep_git_files_permissions
     NODE_OPTIONS: --max-old-space-size=4096
-  cache: *front_cache
+  cache:
+    - *yarn_cache
+    - *node_cache
+    - *lint_cache
   before_script:
     - cd front
     - yarn install --frozen-lockfile