[bug] [LINUX] Cursor theme in GTK is reset to adwaita when running AppImage built on GitHub Actions

[anatawa12]

Describe the bug

Cursor theme in GTK is reset to adwaita when running AppImage built on GitHub Actions.

For app built natively, this issue doesn't occurs

downstream issue: vrc-get/vrc-get#1532

Reproduction

1. change the cursor theme with GTK config (I don't know much)
2. run tauri app built on GitHub Actions

Expected behavior

cursor should be user customized one

Full tauri info output

[✔] Environment
    - OS: Mac OS 14.4.1 arm64 (X64)
    ✔ Xcode Command Line Tools: installed
    ✔ rustc: 1.81.0-beta.7 (4a765c0b8 2024-08-28)
    ✔ cargo: 1.81.0-beta.7 (2dbb1af80 2024-08-20)
    ✔ rustup: 1.27.1 (54dd3d00f 2024-04-24)
    ✔ Rust toolchain: beta-aarch64-apple-darwin (default)
    - node: 22.6.0
    - pnpm: 8.15.4
    - npm: 10.8.2

[-] Packages
    - tauri 🦀: 2.0.0-rc.8
    - tauri-build 🦀: 2.0.0-rc.7
    - wry 🦀: 0.42.0
    - tao 🦀: 0.29.1
    - tauri-cli 🦀: 2.0.0-rc.3
    - @tauri-apps/api : 2.0.0-rc.4
    - @tauri-apps/cli : 2.0.0-rc.10

[-] Plugins
    - tauri-plugin-single-instance 🦀: 2.0.0-rc.1
    - @tauri-apps/plugin-single-instance : not installed!
    - tauri-plugin-dialog 🦀: 2.0.0-rc.3
    - @tauri-apps/plugin-dialog : not installed!
    - tauri-plugin-updater 🦀: 2.0.0-rc.2
    - @tauri-apps/plugin-updater : not installed!
    - tauri-plugin-fs 🦀: 2.0.0-rc.1
    - @tauri-apps/plugin-fs : not installed!

[-] App
    - build-type: bundle
    - CSP: unset
    - frontendDist: out
    - devUrl: http://localhost:3030/
    - framework: React (Next.js)
    - bundler: Webpack

Stack trace

No response

Additional context

No response

[FabianLars]

Probably linuxdeploy/linuxdeploy-plugin-gtk#39