Add pip cache

.gitlab-ci.yml

@@ -6,12 +6,11 @@ static:
   image: node:alpine
   stage: build
   cache:
-    key: ${CI_COMMIT_REF_SLUG}
+    key: npm-$CI_COMMIT_REF_SLUG
     paths:
-      - .npm
-      - .cache
+      - "$CI_PROJECT_DIR/.npm-cache"
   script:
-    - npm ci --cache .npm --prefer-offline
+    - npm ci --cache .npm-cache --prefer-offline
     - npm run build
   artifacts:
     name: '$CI_JOB_ID-node_modules'
@@ -23,6 +22,12 @@ static:
 pip:
   image: python:3.9-slim
   stage: build
+  variables:
+    PIP_CACHE_DIR: $CI_PROJECT_DIR/.pip-cache
+  cache:
+    key: pip-$CI_COMMIT_REF_SLUG
+    paths:
+      - "$CI_PROJECT_DIR/.pip-cache"
   script:
     - python -m venv env
     - source env/bin/activate