Allow triggering workflow dispatch event for CIs (#2865)

Fixes #1710

Signed-off-by: septicmk <septic.mk@gmail.com>

.github/workflows/docs.yml

@@ -1,6 +1,7 @@
 name: Docs
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - main

.github/workflows/gae.yml

@@ -3,6 +3,7 @@ name: GraphScope GAE CI
 on:
   # Trigger the workflow on push or pull request,
   # but only for the main branch
+  workflow_dispatch:
   push:
     branches:
       - main

.github/workflows/gaia.yml

@@ -2,6 +2,7 @@ name: GraphScope GAIA CI
 
 on:
   # Trigger the workflow on push or pull request, but only for the main branch
+  workflow_dispatch:
   push:
     branches:
       - main

.github/workflows/gss.yml

@@ -3,6 +3,7 @@ name: GraphScope Store CI
 on:
   # Trigger the workflow on push or pull request,
   # but only for the main branch
+  workflow_dispatch:
   push:
     branches:
       - main

.github/workflows/k8s-ci.yml

@@ -3,6 +3,7 @@ name: GraphScope CI on Kubernetes
 on:
   # Trigger the workflow on push or pull request,
   # but only for the main branch
+  workflow_dispatch:
   push:
     branches:
       - main

.github/workflows/local-ci.yml

@@ -3,6 +3,7 @@ name: GraphScope CI on Local
 on:
   # Trigger the workflow on push or pull request,
   # but only for the main branch
+  workflow_dispatch:
   push:
     branches:
       - main

.github/workflows/pegasus.yml

@@ -1,6 +1,7 @@
 name: GraphScope Pegasus CI
 
 on:
+  workflow_dispatch:
   push:
     branches:
       - gaia-x