cycleclock: Fix type conversion to match function return type

[kraj]

fixes build with clang19

src/cycleclock.h:208:52: error: implicit conversion changes signedness: 'uint64_t' (aka 'unsigned long long') to 'int64_t' (aka 'long long') [-Werror,-Wsign-conversion] 208 | return (static_cast(cycles_hi1) << 32) | cycles_lo; | ~~ ~~~~~~~~^~~~~ 1 error generated.

[kraj]

The cast should be on the outside, shifting signed values is generally not recommended.

thats right.

[LebedevRI]

Looks like clang-format isn't happy

[kraj]

Looks like clang-format isn't happy

yeah. Fixed in v3, hopefully

[LebedevRI]

@kraj thank you for the contribution!