v0.45.0-20231122.130444

• VimR is not using custom build binary based on libnvim anymore. Thanks to GH-1015 by georgeharker, VimR now uses stock Neovim and can even use external Neovim binary (from v0.10.0 on).
• Neovim 0.10.0-dev-34fa1e1 which means Neovim itself may have some rough edges.
• Minimum macOS requirement is now Ventura (v13).
• Fix VimRSetCharacterspacing: GH-1014
• Add basic file handling to the filebrowser: GH-1005
• Provide neovim original commandline interface: GH-1003
• Add an option for custom Markdown processor: GH-745
• Dependencies updates:
  • ReactiveX/RxSwift@6.6.0
  • sparkle-project/Sparkle@2.5.0
  • apple/swift-collections@1.0.5
  • Quick/Nimble@13.0.0