Casting warnings on Windows

[jhale]

Originally reported by @minrk.

FEniCS/dolfinx#3198 (comment)

When running the tests on Windows, forgot to mention, this warning came up:

libffcx_forms_1b9958e91fd54e9c55f60346c28378fb63cad26e.c(722): warning C4305: 'initializing': truncation from 'double' to 'const float'

104,127 times when running the tests. I'm not sure if that's something that should be fixed in ffcx.

compiler warnings summary from running the tests with pytest -vs:

# grep -E -o 'warning C.+' dolfinx-win64.txt | sort | uniq -c
1665 warning C4113: 'ufcx_tabulate_tensor_float32 (__cdecl **)' differs in parameter lists from 'void (__cdecl **)(float *,const float *,const float *,const float *,const int *,const uint8_t *)'
1665 warning C4113: 'ufcx_tabulate_tensor_float64 (__cdecl **)' differs in parameter lists from 'void (__cdecl **)(double *,const double *,const double *,const double *,const int *,const uint8_t *)'
 165 warning C4244: 'initializing': conversion from 'double' to 'float', possible loss of data
104127 warning C4305: 'initializing': truncation from 'double' to 'const float'