run tests only on pushes to master or to PRs (#581)

Signed-off-by: Sebastian Gumprich <[email protected]>

Signed-off-by: Sebastian Gumprich <[email protected]>

.github/workflows/nginx_hardening.yml

@@ -3,11 +3,13 @@ name: "devsec.nginx_hardening"
 on:  # yamllint disable-line rule:truthy
   workflow_dispatch:
   push:
+    branches: [master]
     paths:
       - 'roles/nginx_hardening/**'
       - 'molecule/nginx_hardening/**'
       - '.github/workflows/nginx_hardening.yml'
   pull_request:
+    branches: [master]
     paths:
       - 'roles/nginx_hardening/**'
       - 'molecule/nginx_hardening/**'