fix: correct permissions and action paths for workflow tests

- Use contents: write for updater (needs to modify files)
- Remove issues: write (not needed)
- Fix github.repository syntax issue in uses field

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: vaind

.github/workflows/danger-workflow-tests.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - name: Run danger action
         id: danger
-        uses: ${{ github.repository }}/danger@${{ github.sha }}
+        uses: getsentry/github-workflows/danger@${{ github.sha }}
 
       - name: Validate danger outputs
         env:

.github/workflows/workflow-tests.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - name: Run updater action
         id: updater
-        uses: ${{ github.repository }}/updater@${{ github.sha }}
+        uses: getsentry/github-workflows/updater@${{ github.sha }}
         with:
           path: updater/tests/sentry-cli.properties
           name: WORKFLOW-TEST-DEPENDENCY-DO-NOT-MERGE
@@ -76,7 +76,7 @@ jobs:
     steps:
       - name: Run updater action
         id: updater
-        uses: ${{ github.repository }}/updater@${{ github.sha }}
+        uses: getsentry/github-workflows/updater@${{ github.sha }}
         with:
           path: updater/tests/workflow-args.sh
           name: Workflow args test script