ci: test.yml - add workflow_dispatch trigger (#14)

## Description

To manually trigger "test" workflow after creating a PR by bot.

## Impact on users using Chronovoyage

None

.github/workflows/test.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - main
   workflow_call:
+  workflow_dispatch:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}