[input_common] Move variable declaration closer to usage

MSVC supplied with VS2022 generates "warning C4189: 'CALIBRATION_THRESHOLD':
local variable is initialized but not referenced" which is treated as an
error.

Circumvent it by moving constexpr variable directly into body of lambda function.

src/input_common/drivers/udp_client.cpp

@@ -536,8 +536,6 @@ CalibrationConfigurationJob::CalibrationConfigurationJob(
     std::function<void(u16, u16, u16, u16)> data_callback) {
 
     std::thread([=, this] {
-        constexpr u16 CALIBRATION_THRESHOLD = 100;
-
         u16 min_x{UINT16_MAX};
         u16 min_y{UINT16_MAX};
         u16 max_x{};
@@ -546,6 +544,8 @@ CalibrationConfigurationJob::CalibrationConfigurationJob(
         Status current_status{Status::Initialized};
         SocketCallback callback{[](Response::Version) {}, [](Response::PortInfo) {},
                                 [&](Response::PadData data) {
+                                    constexpr u16 CALIBRATION_THRESHOLD = 100;
+
                                     if (current_status == Status::Initialized) {
                                         // Receiving data means the communication is ready now
                                         current_status = Status::Ready;