Latest zig 0.14.0 has changes to the build.zig.zon file

[zigster64]

At least its officially out now, so this wont need to change again for a while

Some major changes to how build.zig.zon works, as documented here
https://ziglang.org/download/0.14.0/release-notes.html#New-Package-Hash-Format

It's annoying, but it looks like it has some major benefits.

The most noticeable is incremental compilation and proper caching of libxlswriter build artifacts. Super fast compilation.

Everything still works fine without this, but without these changes it's treated as a "legacy" package, and does unecessary fetches and compiles when developing. Dev experience is much better with these changes applied

I have a PR for this - but you might need to generate a different fingerprint for various reasons (?? not exactly sure ??)
And I have a matching PR on @kassane 's zig-xlswriter pkg as well

Have tested all this on my ERP app that uses all this, and it fixes all the build issues