thrift: fix python3 nativeBuildInputs

[tobim]

python3.pkgs appears to have issues with splicing. When building it in pkgsCross, or pkgsStatic the derivation uses the hostPlatform variant of setuptools as an input, but we want them for buildPlatform instead.

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[tobim]

nix-diff indicates that switching to withPackages doesn't help:

nix-diff /nix/store/whkcs0mgfgsczdkb0ihpqvng4lvrq2i2-thrift-stat
ic-x86_64-unknown-linux-musl-0.18.1.drv /nix/store/x4l7zvj9rsl21gnjkc6dlhifdirzsii9-thrift-static-x86_64-unknown-linux-musl-0.
18.1.drv
- /nix/store/whkcs0mgfgsczdkb0ihpqvng4lvrq2i2-thrift-static-x86_64-unknown-linux-musl-0.18.1.drv:{out}
+ /nix/store/x4l7zvj9rsl21gnjkc6dlhifdirzsii9-thrift-static-x86_64-unknown-linux-musl-0.18.1.drv:{out}
• The set of input derivation names do not match:
    - python3-3.12.8
    - python3.12-setuptools-75.3.0-x86_64-unknown-linux-musl
    + python3-static-x86_64-unknown-linux-musl-3.12.8-env
• The environments do not match:
    nativeBuildInputs=''
    /nix/store/divlf5r1szymxm91idm9v76nmawjsplz-bison-3.8.2 /nix/store/38cffsqqx823crf1i4bcf6zz1qz1hgpd-cmake-3.30.5 /nix/store/gmhlgmbc9fdkyq68w601vnv9l09899hb-flex-2.6.4 /nix/store/01rcbfq8pmkk8nxxia2jwgrp2g0w4fmf-x86_64-unknown-linux-musl-pkg-config-wrapper-0.29.2 /nix/store/c9m6yd8fg1flz2j5r4bif1ib5j20a0cy-python3-3.12.8 /nix/store/m3gsnx49mnpzkmp56pysrc64106cai1r-python3.12-setuptools-75.3.0-x86_64-unknown-linux-musl/nix/store/sgpmz9cvgp0j9sfdi7q2p8jbid93ia7b-python3-static-x86_64-unknown-linux-musl-3.12.8-env
''

🫤

[tobim]

Better solution in #296770.