docs: update github workflow badge (#775)

#### What type of PR is this?

/kind improvement

#### What this PR does / why we need it:

<img width="585" alt="image" src="https://user-images.githubusercontent.com/21301288/208009902-aa2b9139-b0e4-48a1-92f4-964242ae14cf.png">

see https://github.com/badges/shields/issues/8671

#### Does this PR introduce a user-facing change?


```release-note
None
```

README.md

@@ -12,7 +12,7 @@
 <a href="https://github.com/halo-dev/console/releases"><img alt="GitHub release" src="https://img.shields.io/github/release/halo-dev/console.svg?style=flat-square" /></a>
 <a href="https://github.com/halo-dev/console/blob/master/LICENSE"><img alt="GitHub" src="https://img.shields.io/github/license/halo-dev/console?style=flat-square"></a>
 <a href="https://github.com/halo-dev/console/commits"><img alt="GitHub last commit" src="https://img.shields.io/github/last-commit/halo-dev/console.svg?style=flat-square"></a>
-<a href="https://github.com/halo-dev/console/actions"><img alt="GitHub Workflow Status" src="https://img.shields.io/github/workflow/status/halo-dev/console/Halo%20Admin%20CI?style=flat-square"/></a>
+<a href="https://github.com/halo-dev/console/actions"><img alt="GitHub Workflow Status" src="https://img.shields.io/github/actions/workflow/status/halo-dev/console/main.yml?branch=main&style=flat-square"/></a>
 <a href="https://gitpod.io/#https://github.com/halo-dev/console"><img alt="Gitpod ready-to-code" src="https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod&style=flat-square"/></a>
 </p>