remove workflow_dispatch and update safter condition

Author: silabs-NgaNg

.github/workflows/01-CLA-Assistant.yml

@@ -2,7 +2,6 @@ name: 01-CLA-Assistant
 ## This workflow is used for public repositories
 
 on:
-  workflow_dispatch:
   issue_comment:
     types: [created]
   pull_request_target:
@@ -28,7 +27,7 @@ jobs:
           repositories: contributor-license-agreements
 
       - name: "CLA Assistant"
-        if: ${{ contains(github.event.comment.body, 'I have read the CLA Document and I hereby sign the CLA') || github.event_name == 'pull_request_target' }}
+        if: ${{ github.event_name == 'pull_request_target' || (github.event_name == 'issue_comment' && contains(github.event.comment.body, 'I have read the CLA Document and I hereby sign the CLA')) }}
         uses: SiliconLabsSoftware/action-cla-assistant@silabs_flavour_v2
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}