fix(ci): grant security-events: write to lint job

The lint-docker job in lint.yml requires security-events: write
for SARIF upload; must be explicitly granted to the caller job.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -27,6 +27,9 @@ jobs:
   lint:
     name: Run lint workflow
     uses: ./.github/workflows/lint.yml
+    permissions:
+      contents: read
+      security-events: write
 
   publish:
     name: Publish image