wine64Packages.wayland: add missing wayland-scanner build input

[trofi]

Without the change the build fails on staging as:

wine64-wayland> checking for wayland-scanner... Package wayland-scanner was not found in the pkg-config search path.
wine64-wayland> Perhaps you should add the directory containing `wayland-scanner.pc'
wine64-wayland> to the PKG_CONFIG_PATH environment variable
wine64-wayland> No package 'wayland-scanner' found
wine64-wayland> no
...
wine64-wayland> configure: error: Wayland 64-bit development files not found or not new enough, the Wayland driver won't be supported.
wine64-wayland> This is an error since --with-wayland was requested.

Description of changes

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/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 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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[alyssais]

Not nativeBuildInputs?

[flokli]

Not nativeBuildInputs?

See the discussion in #214906 (comment). We can probably clean stuff up further in a followup.

[7c6f434c]

Build failure looks unrelated to me.