Be less strict with timer test

The `SuccessSynchronizedTime` previously sampled for several hundred
nanoseconds in order to detect clock drift. This is too strict, and so
it has been increased to 500ms.

Author: RossBrunton

test/conformance/device/device_adapter_cuda.match

@@ -1,2 +1 @@
-{{OPT}}urDeviceGetGlobalTimestampTest.SuccessSynchronizedTime
 urDeviceGetInfoTest.Success/UR_DEVICE_INFO_MAX_READ_WRITE_IMAGE_ARGS

test/conformance/device/device_adapter_hip.match

@@ -1,2 +1 @@
-{{OPT}}urDeviceGetGlobalTimestampTest.SuccessSynchronizedTime
 {{OPT}}urDeviceGetInfoTest.Success/UR_DEVICE_INFO_GLOBAL_MEM_FREE

test/conformance/device/device_adapter_level_zero.match

@@ -1,2 +1 @@
-{{OPT}}urDeviceGetGlobalTimestampTest.SuccessSynchronizedTime
 {{OPT}}urDeviceGetInfoTest.Success/UR_DEVICE_INFO_GLOBAL_MEM_FREE

test/conformance/device/device_adapter_level_zero_v2.match

@@ -1,6 +1,5 @@
 urDeviceCreateWithNativeHandleTest.InvalidNullHandlePlatform
 urDeviceCreateWithNativeHandleTest.InvalidNullPointerDevice
-{{OPT}}urDeviceGetGlobalTimestampTest.SuccessSynchronizedTime
 urDeviceGetInfoSingleTest.MaxWorkGroupSizeIsNonzero
 {{OPT}}urDeviceSelectBinaryTest.Success
 urDeviceGetInfoTest.Success/UR_DEVICE_INFO_MAX_READ_WRITE_IMAGE_ARGS

test/conformance/device/device_adapter_native_cpu.match

@@ -13,7 +13,6 @@
 //          - Currently we are saying the error between host/device
 //          - timers is 0.5%
 constexpr double allowedTimerError = 0.005;
-constexpr size_t delayTimerMultiplier = 100;
 
 /// @brief Return the absolute difference between two numeric values.
 /// @tparam T An numeric type.
@@ -57,12 +56,6 @@ TEST_F(urDeviceGetGlobalTimestampTest, SuccessNoTimers) {
 TEST_F(urDeviceGetGlobalTimestampTest, SuccessSynchronizedTime) {
     for (auto device : devices) {
         // get the timer resolution of the device
-        size_t deviceTimerResolutionNanoSecs = 0;
-        ASSERT_SUCCESS(uur::GetDeviceProfilingTimerResolution(
-            device, deviceTimerResolutionNanoSecs));
-        size_t delayAmountNanoSecs =
-            delayTimerMultiplier * deviceTimerResolutionNanoSecs;
-
         uint64_t deviceStartTime = 0, deviceEndTime = 0;
         uint64_t hostStartTime = 0, hostEndTime = 0;
         uint64_t hostOnlyStartTime = 0, hostOnlyEndTime = 0;
@@ -77,8 +70,7 @@ TEST_F(urDeviceGetGlobalTimestampTest, SuccessSynchronizedTime) {
         ASSERT_GE(hostOnlyStartTime, hostStartTime);
 
         // wait for timers to increment
-        std::this_thread::sleep_for(
-            std::chrono::nanoseconds(delayAmountNanoSecs));
+        std::this_thread::sleep_for(std::chrono::milliseconds(16));
 
         ASSERT_SUCCESS(
             urDeviceGetGlobalTimestamps(device, &deviceEndTime, &hostEndTime));