Added cache keys to prevent jobs from overriding each others chaches

.gitlab-ci.yml

@@ -22,6 +22,7 @@ build_test_env:
       - .venv/
     expire_in: 20 minutes
   cache:
+    key: "$CI_JOB_NAME"
     paths:
       - .venv
 
@@ -45,6 +46,7 @@ test_pytest:
     paths:
       - .coverage
   cache:
+    key: "$CI_JOB_NAME"
     paths:
       - .coverage
 
@@ -67,6 +69,7 @@ test_frontend:
     - yarn install
     - yarn test --single-run
   cache:
+    key: "$CI_JOB_NAME"
     paths:
       - frontend/node_modules/