Change default docker image tag to 'dev'

Author: xuwei-fit2cloud

.github/workflows/build_and_push.yml

@@ -7,7 +7,7 @@ on:
     inputs:
       dockerImageTag:
         description: 'Image Tag'
-        default: 'v0.9.0'
+        default: 'dev'
         required: true
       dockerImageTagWithLatest:
         description: '是否发布latest tag（正式发版时选择，测试版本切勿选择）'