github: add actions: read permission for CI status in claude-code-review

The claude-code-action uses mcp__github_ci__get_ci_status and related
tools to check workflow run status as part of the review. Without
actions: read the GitHub API calls for CI status are rejected.

Fixes: c0e75c9de6 ("github: add Claude code review workflow triggered by /claude comment")
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 122b2f2ef5)
Link: https://github.com/openwrt/openwrt/pull/24318
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

.github/workflows/claude-code-review.yml

@@ -7,6 +7,7 @@ on:
 permissions:
   contents: read
   pull-requests: write
+  actions: read
 
 jobs:
   code-review: