fix: not redirect to /console after setup (#6852)

#### What type of PR is this?

/area core
/kind bug
/milestone 2.20.x

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

修复初始化登录之后，没有正确重定向到 /console 的问题。

#### Which issue(s) this PR fixes:

Fixes #6850 

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

```release-note
None
```

application/src/main/java/run/halo/app/security/preauth/SystemSetupEndpoint.java

@@ -150,7 +150,7 @@ public class SystemSetupEndpoint {
     }
 
     private static Mono<ServerResponse> redirectToConsole() {
-        return ServerResponse.temporaryRedirect(URI.create("/console")).build();
+        return ServerResponse.status(HttpStatus.FOUND).location(URI.create("/console")).build();
     }
 
     private Mono<Void> doInitialization(SetupRequest body) {