docs: remove dependabot-auto-merge reference from CLAUDE.md

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: sjnims

CLAUDE.md

@@ -336,7 +336,6 @@ Use these agents proactively after creating components:
 - `semantic-labeler.yml` - Auto-labels issues/PRs
 - `ci-failure-analysis.yml` - Analyzes CI failures
 - `weekly-maintenance.yml` - Scheduled maintenance tasks
-- `dependabot-auto-merge.yml` - Auto-merges dependabot PRs
 - `sync-labels.yml` - Synchronizes repository labels
 - `greet.yml` - Greets new contributors