Add model specification for Claude in workflow

Add claude_args to specify the model for Claude.

Author: ericallam

.github/workflows/claude.yml

@@ -40,6 +40,9 @@ jobs:
           additional_permissions: |
             actions: read
 
+          claude_args: |
+            --model claude-opus-4-5-20251101
+
           # Optional: Give a custom prompt to Claude. If this is not specified, Claude will perform the instructions specified in the comment that tagged it.
           # prompt: 'Update the pull request description to include a summary of changes.'