Merge 'Also build release pipeline for tags'

See merge request engel-simulator-2020/game!46

.gitlab-ci.yml

@@ -41,6 +41,7 @@ build-release:
     <<: *global_cache
     key: release-build
   script:
+    - touch .git/HEAD
     - wasm-pack build
     - cd www
     - npm install
@@ -51,6 +52,7 @@ build-release:
       - www/dist
   only:
     - master
+    - tags
 
 deploy:
   stage: deploy
@@ -60,3 +62,4 @@ deploy:
     - "cp -r www/dist/* /var/www/game"
   only:
     - master
+    - tags