cmake: only build cli when server is enabled (#18670)

tools/CMakeLists.txt

@@ -18,11 +18,11 @@ else()
     add_subdirectory(gguf-split)
     add_subdirectory(imatrix)
     add_subdirectory(llama-bench)
-    add_subdirectory(cli)
     add_subdirectory(completion)
     add_subdirectory(perplexity)
     add_subdirectory(quantize)
     if (LLAMA_BUILD_SERVER)
+        add_subdirectory(cli)
         add_subdirectory(server)
     endif()
     add_subdirectory(tokenize)