Update harfbuzz to 8.3.1 fix clang-cl build

[Nopey]

See harfbuzz/harfbuzz#4585, which fixes the build of this in servo on Windows.

[waywardmonkeys]

We've been updating to actual releases, not (semi-)random points in time ... might be worth checking to see when he next plans a release.

Also, probably worth submitting a PR to harfbuzz to do CI builds with clang-cl to avoid this happening again in the future.

[jschwe]

@Nopey FYI harfbuzz 8.3.1 was just released

[Nopey]

Thanks jschwe! Updated this MR to use latest upstream release 8.3.1, which includes the commit b8178f25 that fixes clang-cl builds.

Also, probably worth submitting a PR to harfbuzz to do CI builds with clang-cl to avoid this happening again in the future.

I looked into this on my ci-clang-cl branch; I'm running into issues when harfbuzz's meson scripts try to build freetype. I'll have to look into adding clang-cl to freetype's gitlab ci, but haven't started that work.