Simplify telemetry request time check in CI (#977)

Simplify request time check

Co-authored-by: Andy Waite <[email protected]>

Author: andyw8

test/integration_test.rb

@@ -387,7 +387,7 @@ def assert_telemetry(request, expected_uri = @uri.path.sub(Dir.home, "~"))
     assert_equal(expected_uri, telemetry_response.dig(:params, :uri))
     assert_equal(RubyLsp::VERSION, telemetry_response.dig(:params, :lspVersion))
     assert_equal(request, telemetry_response.dig(:params, :request))
-    assert_in_delta(0.5, telemetry_response.dig(:params, :requestTime), 2)
+    assert_instance_of(Float, telemetry_response.dig(:params, :requestTime))
   end
 
   def make_request(request, params = nil)