Update test workflow

Do not run if labeled 'dependencies'

.github/workflows/tests.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    if: ${{ !contains(github.ref_name, 'dependabot') }}
+    if: github.event.pull_request.labels[0].name != 'dependencies'
     runs-on: ubuntu-latest
     environment:
       name: development