[Bug] [dashboard] Add exclude node not work

[maobaolong]

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• [X] I agree to follow this project's Code of Conduct

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• [X] I have searched in the issues and found no similar issues.

Describe the bug

There are not requestServerType and targetAddress in headers.

Affects Version(s)

master

Uniffle Server Log Output

`dashboard.log`

[2024-08-02 10:00:27.002] [DashboardServer-47] [WARN] ServletHandler - /api/server/addExcludeNodes
java.lang.IllegalArgumentException: Invalid URI host: null (authority: null)
    at org.eclipse.jetty.client.HttpClient.checkHost(HttpClient.java:487)
    at org.eclipse.jetty.client.HttpClient.newHttpRequest(HttpClient.java:472)
    at org.eclipse.jetty.client.HttpClient.newRequest(HttpClient.java:430)
    at org.eclipse.jetty.client.HttpClient.newRequest(HttpClient.java:419)
    at org.eclipse.jetty.proxy.ProxyServlet.service(ProxyServlet.java:80)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
    at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
    at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:584)
    at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
    at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
    at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
    at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
    at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)
    at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
    at org.eclipse.jetty.server.Server.handle(Server.java:539)
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333)
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
    at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
    at java.base/java.lang.Thread.run(Thread.java:833)

### Uniffle Engine Log Output

_No response_

### Uniffle Server Configurations

_No response_

### Uniffle Engine Configurations

_No response_

### Additional context

_No response_

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!

[maobaolong]

@yl09099 Would you like to take a look at this issue?