Use fuzzy scheduling (daily on weekdays) instead of cron expression

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Author: Copilot

docs/repository-quality-improver.md

@@ -78,7 +78,7 @@ The workflow uses these default settings:
 
 | Setting | Default | Description |
 |---------|---------|-------------|
-| Schedule | Weekdays at 1 PM UTC | When to run the analysis |
+| Schedule | Daily on weekdays | When to run the analysis |
 | Issue labels | `quality`, `automated-analysis` | Labels applied to created issues |
 | Max issues per run | 1 | Prevents duplicate reports |
 | Issue expiry | 2 days | Older issues are closed when a new one is posted |

workflows/repository-quality-improver.md

@@ -2,8 +2,7 @@
 name: Repository Quality Improver
 description: Daily analysis of repository quality focusing on a different software development lifecycle area each run
 on:
-  schedule:
-    - cron: "0 13 * * 1-5"  # Weekdays at 1 PM UTC
+  schedule: daily on weekdays
   workflow_dispatch:
 permissions:
   contents: read