[CI] support build wheel and docker image by workflow (#6453)

Make image and wheel build CI job work with workflow_dispatch way

- vLLM version: v0.14.1
- vLLM main:
dc917cceb8

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

.github/workflows/schedule_image_build_and_push.yaml

@@ -21,9 +21,14 @@ on:
     inputs:
       tag:
         description: 'Docker tag for build results'
-        type: string
         default: main
         required: true
+        type: choice
+        options:
+          - main
+          - v0.15.0rc1
+          - v0.14.0rc1
+          - v0.13.0rc2
 
 jobs:
   image_build: