fix checkstyle

Author: xinyi-gong

com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/CopilotLanguageClient.java

@@ -54,8 +54,8 @@
 import com.microsoft.copilot.eclipse.core.lsp.protocol.LanguageModelToolResult;
 import com.microsoft.copilot.eclipse.core.lsp.protocol.LanguageModelToolResult.ToolInvocationStatus;
 import com.microsoft.copilot.eclipse.core.lsp.protocol.OnChangeMcpServerToolsParams;
-import com.microsoft.copilot.eclipse.core.lsp.protocol.ReadDirectoryResult;
 import com.microsoft.copilot.eclipse.core.lsp.protocol.RateLimitWarningParams;
+import com.microsoft.copilot.eclipse.core.lsp.protocol.ReadDirectoryResult;
 import com.microsoft.copilot.eclipse.core.lsp.protocol.ReadFileResult;
 import com.microsoft.copilot.eclipse.core.lsp.protocol.codingagent.CodingAgentMessageRequestParams;
 import com.microsoft.copilot.eclipse.core.lsp.protocol.codingagent.CodingAgentMessageResult;