Fix minor typo in UserConfig.cmake.sample (.exe instead of .dll) (#13926)

Co-authored-by: Ben Hillis <benhill@ntdev.microsoft.com>

Author: benhillis

UserConfig.cmake.sample

@@ -16,7 +16,7 @@ message(STATUS "Loading user configuration")
 # file(CREATE_LINK "${MSRDC_SOURCE_DIR}/${TARGET_PLATFORM}/rdpnanoTransport.dll" "${WSL_DEV_BINARY_PATH}/rdpnanoTransport.dll" SYMBOLIC)
 # file(CREATE_LINK "${MSRDC_SOURCE_DIR}/${TARGET_PLATFORM}/RdpWinStlHelper.dll" "${WSL_DEV_BINARY_PATH}/RdpWinStlHelper.dll" SYMBOLIC)
 # file(CREATE_LINK "${MSAL_SOURCE_DIR}/${TARGET_PLATFORM}/msal.wsl.proxy.exe" "${WSL_DEV_BINARY_PATH}/msal.wsl.proxy.exe" SYMBOLIC)
-# file(CREATE_LINK "${BIN}/wsldevicehost.dll" "${WSL_DEV_BINARY_PATH}/wsldevicehost.exe" SYMBOLIC)
+# file(CREATE_LINK "${BIN}/wsldevicehost.dll" "${WSL_DEV_BINARY_PATH}/wsldevicehost.dll" SYMBOLIC)
 # file(CREATE_LINK "${DIRECT3D_SOURCE_DIR}/lib/${TARGET_PLATFORM}" "${WSL_DEV_BINARY_PATH}/lib" SYMBOLIC)
 
 # foreach(LANG ${SUPPORTED_LANGS})