Fix: Workflow exits successfully when yt-dlp is up to date

[Copilot]

The yt-dlp version check workflow fails when versions are already current, despite functioning correctly. The Python comparison script exits with code 1 to signal "no update needed," which bash interprets as failure.

Changes

• Add explicit exit 0 after setting needs_update=false in the version comparison step

elif [ $EXIT_CODE -eq 1 ]; then
  echo "needs_update=false" >> $GITHUB_OUTPUT
  echo "yt-dlp is up to date"
  exit 0  # Ensure step succeeds when no update needed

This ensures the workflow succeeds when yt-dlp is current, while actual comparison errors (exit code 2) still fail the workflow.

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