ci: Add IRC notification for main channel

Releases are probably important enough

.github/workflows/release.yml

@@ -192,6 +192,14 @@ jobs:
           channel: '#qutebrowser-bots'
           nickname: qutebrowser-bot
           message: "[${{ github.workflow }}] \u00033Success:\u0003 ${{ github.ref }} https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }} (@${{ github.actor }})"
+      - name: Send main channel IRC notification
+        uses: Gottox/irc-message-action@v2
+        if: "${{ needs.finalize.result == 'success' && github.repository == 'qutebrowser/qutebrowser' }}"
+        with:
+          server: irc.libera.chat
+          channel: '#qutebrowser'
+          nickname: qutebrowser-bot
+          message: "qutebrowser v${{ needs.prepare.outputs.version }} has been released! https://github.com/${{ github.repository }}/releases/tag/v${{ needs.prepare.outputs.version }}"
       - name: Send non-success IRC notification
         uses: Gottox/irc-message-action@v2
         if: "${{ needs.finalize.result != 'success' }}"