Update Claude GitHub Action to use Opus 4.5 model (#4)

Configure both workflow files to use claude-opus-4-5-20251101 via
the claude_args parameter.

Co-authored-by: Claude <noreply@anthropic.com>

Author: bsamek

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

@@ -39,6 +39,8 @@ jobs:
           plugin_marketplaces: 'https://github.com/anthropics/claude-code.git'
           plugins: 'code-review@claude-code-plugins'
           prompt: '/code-review:code-review ${{ github.repository }}/pull/${{ github.event.pull_request.number }}'
+          # Use Opus 4.5 model
           # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
           # or https://code.claude.com/docs/en/cli-reference for available options
+          claude_args: '--model claude-opus-4-5-20251101'
 

.github/workflows/claude.yml

@@ -43,8 +43,8 @@ jobs:
           # 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.'
 
-          # Optional: Add claude_args to customize behavior and configuration
+          # Use Opus 4.5 model
           # See https://github.com/anthropics/claude-code-action/blob/main/docs/usage.md
           # or https://code.claude.com/docs/en/cli-reference for available options
-          # claude_args: '--allowed-tools Bash(gh pr:*)'
+          claude_args: '--model claude-opus-4-5-20251101'