allow for tests to run for dependabot without need for label

.github/workflows/github_actions.yml

@@ -3,18 +3,21 @@ name: 'BrowserStack Test'
 on:
   pull_request_target:
     branches: [ master ]
-    types: [ labeled ]
+    types: [ labeled, opened, synchronize ]
 
 jobs:
   ubuntu-job:
     name: 'BrowserStack Test on Ubuntu'
     runs-on: ubuntu-latest
-    if: github.event.label.name == 'safe_to_test'
+    if: |
+      github.event.label.name == 'safe_to_test' ||
+      github.event.pull_request.user.login == 'dependabot[bot]'
     env:
       GITACTIONS: true
     steps:
 
       - name: 'Remove safe_to_test label'
+        if: github.event.label.name == 'safe_to_test'
         uses: actions/github-script@v8
         with:
           script: |