Pin claude-code-action to commit SHA (#59)

Closes #15

Co-authored-by: Oleg Gusakov <oleg@render.com>
GitOrigin-RevId: 7de49e0

Author: oleg-render

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

@@ -34,7 +34,7 @@ jobs:
 
       - name: Run Claude Code Review
         id: claude-review
-        uses: anthropics/claude-code-action@beta
+        uses: anthropics/claude-code-action@28f83620103c48a57093dcc2837eec89e036bb9f  # beta (v0.0.63)
         with:
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}
           claude_code_oauth_token: ${{ secrets.CLAUDE_CODE_OAUTH_TOKEN }}

.github/workflows/claude.yml

@@ -32,7 +32,7 @@ jobs:
 
       - name: Run Claude Code
         id: claude
-        uses: anthropics/claude-code-action@beta
+        uses: anthropics/claude-code-action@28f83620103c48a57093dcc2837eec89e036bb9f  # beta (v0.0.63)
         with:
           anthropic_api_key: ${{ secrets.GITHUB_ACTIONS_CLAUDE }}