[cuDNN] Don't enforce bitwise exact results in `test_conv_transposed_large_cuda` (#78147)
`test_conv_transposed_large` expects bitwise perfect results in fp16 on CUDA, but this behavior isn't guaranteed by cuDNN (e.g., in the case of FFT algos).
This PR just changes the tolerance on the test to account for these cases.
CC @ptrblck @ngimel
Pull Request resolved: https://github.com/pytorch/pytorch/pull/78147
Approved by: https://github.com/ngimel
