Update CodeRabbit configuration with review workflow and labeling (#6582)

* Update CodeRabbit configuration with review workflow and labeling

* Add release notes for PR #6582

* Update CodeRabbit configuration to change label descriptions to instructions and modify release notes category from Enhancements to Maintenance.

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.coderabbit.yaml

@@ -2,8 +2,24 @@ issue_enrichment:
   auto_enrich:
     enabled: false
 reviews:
-  review_status: false
+  request_changes_workflow: true
+  review_status: true
   high_level_summary: false
   finishing_touches:
     docstrings:
       enabled: false
+  pre_merge_checks:
+    docstrings:
+      enabled: false
+  labeling_instructions:
+    - label: 'suspect ai generated'
+      instructions: 'This issue or PR is suspected to be generated by AI.'
+    - label: 'API'
+      instructions: 'This issue or PR updates the API in `packages/api`.'
+    - label: 'documentation'
+      instructions: 'This issue updates the documentation in `packages/docs`.'
+    - label: 'contains DB migrations'
+      instructions: 'This issue or PR contains DB migrations in `packages/loot-core/migrations`.'
+    - label: 'size small'
+      instructions: 'This issue or PR is a small change (less than 50 lines of code) that is expected to have a small impact on the codebase.'
+  auto_apply_labels: true