chore: add a debugger (#226)

Author: sethvargo

.github/workflows/gemini-dispatch.yml

@@ -23,6 +23,25 @@ defaults:
     shell: 'bash'
 
 jobs:
+  debugger:
+    if: |-
+     ${{ fromJSON(vars.DEBUG || vars.ACTIONS_STEP_DEBUG || false) }}
+    runs-on: 'ubuntu-latest'
+    permissions:
+      contents: 'read'
+    steps:
+      - name: 'Print context for debugging'
+        env:
+          DEBUG_event_name: '${{ github.event_name }}'
+          DEBUG_event__action: '${{ github.event.action }}'
+          DEBUG_event__comment__author_association: '${{ github.event.comment.author_association }}'
+          DEBUG_event__issue__author_association: '${{ github.event.issue.author_association }}'
+          DEBUG_event__pull_request__author_association: '${{ github.event.pull_request.author_association }}'
+          DEBUG_event__review__author_association: '${{ github.event.review.author_association }}'
+          DEBUG_event: '${{ toJSON(github.event) }}'
+        run: |-
+          env | grep '^DEBUG_'
+
   dispatch:
     if: |-
       (