Update torture.yml

Author: kassoulet

.github/workflows/torture.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: [ "main" ]
 
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
 jobs:
   build:
     name: Build and Test on ${{ matrix.os }} with Meson v${{ matrix.meson_version }}