[PtE][CoreML] Create modelID as value not reference (#98655)
Summary:
https://www.internalfb.com/logview/details/instagram_ios_crashes/d5fd49a99f3ee21a82b66861de797711
CoreML is crashing in torch::jit::mobile::coreml::CoreMLBackend::compile(c10::IValue, c10::Dict<c10::IValue, c10::IValue>) (PTMCoreMLBackend.mm<175>)
This is related to the crash here https://www.internalfb.com/logview/details/instagram_ios_crashes/a8a317c8da13cd577529e1763364f496/?trace_key=8002f84f5ea00ac68b0dfb91878c754a&selected-logview-tab=shared
kimishpatel's original fix here D44386623 by passing modelID by value instead of reference, however I believe it just moved the error to loadModel invocation.
When we create a copy of modelID on loadModel invocation, it is a reference to the string within the preprocessed IValue payload. When the payload is deallocated, modelID is no longer valid and the dispatched thread still tries to use it causing the error
Test Plan:
```
Running with tpx session id: 2a77b7b1-7594-4479-8ac3-c01db29cf5cc
Trace available for this run at /tmp/tpx-20230407-173155.849234-2a77b7b1-7594-4479-8ac3-c01db29cf5cc/trace.log
RemoteExecution session id: reSessionID-2a77b7b1-7594-4479-8ac3-c01db29cf5cc-tpx
I0407 17:31:55.970502 780835 ConfigeratorDomainConfigs.cpp:177] Notify user with updated size: 92 removed size: 0
Started reporting to test run: https://www.internalfb.com/intern/testinfra/testrun/1970325002807752
✓ ListingSuccess: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests : 13 tests discovered (0.177)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchBITests/testBITextModel (0.028)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchBITests/testBIXRayModel (0.167)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCPUBlasTests/testGemmComplexDouble (0.001)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCPUBlasTests/testGemmComplexFloat (0.001)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCPUBlasTests/testGemmDouble (0.001)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCPUBlasTests/testGemmFloat (0.001)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCoreMLTests/testGanModel (0.303)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCoreMLTests/testMCSModel (0.395)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCoreMLTests/testMCSModelInvalidInputShape (0.305)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchCoreMLTests/testXirpModel (0.110)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchDynamicPyTorchTests/testDynamicPytorchFamFlDictModel (0.014)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchDynamicPyTorchTests/testDynamicPytorchFamFlModel (0.005)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - PyTorchDynamicPyTorchTests/testDynamicPyTorchXirpModel (0.065)
✓ Pass: //fbobjc/Apps/Internal/PyTorchPlayground:PyTorchPlaygroundTests - main (13.177)
```
Differential Revision: D44808433
Pull Request resolved: https://github.com/pytorch/pytorch/pull/98655
Approved by: https://github.com/SS-JIA, https://github.com/tiandiao123, https://github.com/kirklandsign
