Regenerate binaries on ISPC 1.27

[MarijnS95]

https://github.com/ispc/ispc/releases/tag/v1.27.0
https://github.com/Traverse-Research/ispc-downsampler/actions/runs/15157304944

TODO: Still need to compare performance, but perhaps this helps on newer architectures. Might also have to evaluate if we're simply missing some TargetISA flags relevant for newer SoCs?

[MarijnS95]

Turns out there are a bunch of new generic target ISAs to streamline which vector sizes/widths to select, as well as Apple-specific CPU targets :)

[MarijnS95]

On the MacBook Air M4

Main @ 3556673

Downsample `square_test.png` using ispc_downsampler
                        time:   [38.827 ms 38.848 ms 38.884 ms]
Found 5 outliers among 100 measurements (5.00%)
  3 (3.00%) high mild
  2 (2.00%) high severe

This ispc-1.27 PR @ 3556673

Downsample `square_test.png` using ispc_downsampler
                        time:   [48.220 ms 48.253 ms 48.287 ms]
                        change: [+24.103% +24.190% +24.278%] (p = 0.00 < 0.05)
                        Performance has regressed.

Recompiling locally on the M4 Air (ispc 1.27.0 from brew using cargo b -rF ispc):

Downsample `square_test.png` using ispc_downsampler
                        time:   [46.576 ms 46.586 ms 46.596 ms]
                        change: [-3.5237% -3.4550% -3.3855%] (p = 0.00 < 0.05)
                        Performance has improved.

That's a significant performance deficit, which we should investigate before merging. Even playing around with the new CPU flags from Twinklebear/ispc-rs#42, or the generic ISAs, or removing .target_isas() altogether to compile natively for the host yields no improvement.

Funny thing is, with the ISPC test this M4 Air whines a little, but it doesn't during resize 😓