Make test jobs interruptible

.gitlab-ci.yml

@@ -18,6 +18,7 @@ stages:
   - deploy
 
 review_front:
+  interruptible: true
   stage: review
   image: node:11
   when: manual
@@ -57,6 +58,7 @@ review_front:
     url: http://$CI_PROJECT_NAMESPACE.pages.funkwhale.audio/-/$CI_PROJECT_NAME/-/jobs/$CI_JOB_ID/artifacts/front-review/index.html
 
 review_docs:
+  interruptible: true
   stage: review
   when: manual
   allow_failure: true
@@ -89,6 +91,7 @@ review_docs:
     url: http://$CI_PROJECT_NAMESPACE.pages.funkwhale.audio/-/$CI_PROJECT_NAME/-/jobs/$CI_JOB_ID/artifacts/docs-review/index.html
 
 black:
+  interruptible: true
   image: python:3.6
   stage: lint
   variables:
@@ -99,6 +102,7 @@ black:
     - black --check --diff api/
 
 flake8:
+  interruptible: true
   image: python:3.6
   stage: lint
   variables:
@@ -113,6 +117,7 @@ flake8:
       - "$PIP_CACHE_DIR"
 
 test_api:
+  interruptible: true
   services:
     - postgres:11
     - redis:3
@@ -141,6 +146,7 @@ test_api:
     - docker
 
 test_front:
+  interruptible: true
   stage: test
   image: node:11
   before_script: