Merge pull request 'Added pull_request trigger in build stage' (#100) from test into main

Reviewed-on: #100

.drone.yml

@@ -30,6 +30,8 @@ steps:
       - trivy image --image-src remote --exit-code 1 --severity CRITICAL nexus.khongisa.co.za/webapitest:${DRONE_BUILD_NUMBER}
 
 trigger:
+  event:
+    - pull_request
   branch:
     - main