v1.3.1

v1.3.1

• Changes
  • Removes LLVMPipe backend from Gallium build. This means we no longer depend on or ship the entire LLVM library.
  • Include libfontconfig in artifact package.
  • Include libfreetype in artifact package.
  • Bump Buildroot to 2025.05.2.
  • Add :engine_switches option to the Engine module. This allows users to pass Flutter engine flags to the embedder.
  • Copy legal info into artifact package.