ci: add manual workflow trigger

Author: dirx

.github/workflows/test-extension-compatibility.yml

@@ -3,6 +3,7 @@ name: Extension Compatibility
 on:
   push:
   pull_request:
+  workflow_dispatch:
 
 jobs:
   test-extension-compatibility:

.github/workflows/test-macos.yml

@@ -3,6 +3,7 @@ name: Build macOS
 on:
   push:
   pull_request:
+  workflow_dispatch:
 
 jobs:
   tests-macos:

.github/workflows/test-windows.yml

@@ -3,6 +3,7 @@ name: Build Windows
 on:
   push:
   pull_request:
+  workflow_dispatch:
 
 jobs:
   tests-windows:

.github/workflows/test.yml

@@ -3,6 +3,7 @@ name: Build
 on:
   push:
   pull_request:
+  workflow_dispatch:
 
 jobs:
   tests: