Enable manual triggering of SharkPool workflow with workflow_dispatch event

Author: Sunwuyuan

.github/workflows/SharkPool.yml

@@ -4,12 +4,9 @@
 name: SharkPools 扩展
 
 on:
-  push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
   schedule:
     - cron: '0 0 * * 1'
+  workflow_dispatch:
 jobs:
   build:
     runs-on: ubuntu-latest