feat(ci): allow to manually run the tests workflow

Author: BoboTiG

.github/workflows/tests.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - master
   pull_request:
+  workflow_dispatch:
 
 concurrency:
   group: ${{ github.ref }}-${{ github.workflow }}-${{ github.event_name }}-${{ github.event_name != 'pull_request' && github.sha || '' }}