Update .gitlab-ci.yml

.gitlab-ci.yml

 include:
   - project: coscine/tools/gitlab-ci-templates
     file: 
+      - /docker-runner.yml
       - /dotnet.yml
 
 stages:
@@ -18,7 +19,17 @@ build-nuget-release:
   extends: .build-nuget-release
 
 test:
-  extends: .test
+  extends: .dotnet-docker-base
+  stage: test
+  script:
+    # Discover test projects in `src` folder
+    - dotnet test src
+  # TODO Add Dotnet Test coverage
+  only:
+    # Do not run tests for chore commit by bot but re-run tests for the semver tag before pushing to npm
+    variables:
+      - $GITLAB_USER_ID != $GIT_BOT_USER_ID || $CI_COMMIT_TAG =~ /v[0-9]*\.[0-9]*\.[0-9]*/
+
 
 publish-branch-prerelease:
   extends: .publish-branch-prerelease
@@ -30,4 +41,4 @@ publish-master-release:
   extends: .publish-master-release
 
 publish-nuget-release:
-  extends: .publish-nuget-release
\ No newline at end of file
+  extends: .publish-nuget-release