Allow launching actions from web interface

.github/workflows/monitor-php8.4.yml

@@ -6,6 +6,7 @@ on:
   repository_dispatch:
     types:
       - monitor-php8.4
+  workflow_dispatch:
 
 jobs:
   test_extensions:

.github/workflows/readme-release.yml

@@ -10,6 +10,7 @@ on:
   repository_dispatch:
     types:
       - readme-release
+  workflow_dispatch:
 
 jobs:
   readme-release:

.github/workflows/test-recent-extensions.yml

@@ -6,6 +6,7 @@ on:
   repository_dispatch:
     types:
       - test-recent-extensions
+  workflow_dispatch:
 
 jobs:
   determine_extension_list:

.github/workflows/test-sending-notifications.yml

@@ -4,6 +4,7 @@ on:
   repository_dispatch:
     types:
       - test-sending-notifications
+  workflow_dispatch:
 
 jobs:
   send_sampe_notification: