[Minor] Fix pipeline

.drone.yml

@@ -56,7 +56,7 @@ pipeline:
 
   eslint:
     image: node:10-alpine
-    group: build
+    group: tests
     commands:
       - npm install
       - ./node_modules/.bin/eslint -v
@@ -70,7 +70,7 @@ pipeline:
   perl-tidyall:
     # https://github.com/rspamd/rspamd-build-docker/blob/master/perl-tidyall/Dockerfile
     image: rspamd/ci-perl-tidyall
-    group: build
+    group: tests
     commands:
       - tidyall --version
       - perltidy --version | head -1