Compile warnings MSVC142/143

[mrboojum]

When sorting 64 bit ints I got some warnings on windows/MSVC142
pdqsort\pdqsort.h(278,26): warning C4244: 'initializing': conversion from '__int64' to 'int', possible loss of data ...
pdqsort\pdqsort.h(143,1): warning C4244: '+=': conversion from '__int64' to 'int', possible loss of data

I can resolve them locally by replacing int with int64

[orlp]

I think you have an outdated version of pdqsort.h, can you update it and see if that resolves it?