Pin anthropics/claude-code-action action to 426380f (#211)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/claude.yml

@@ -33,6 +33,6 @@ jobs:
 
       - name: Run Claude Code
         id: claude
-        uses: anthropics/claude-code-action@v1
+        uses: anthropics/claude-code-action@426380f01bad0a17200865605a85cb28926dccbf # v1
         with:
           anthropic_api_key: ${{ secrets.ANTHROPIC_API_KEY }}