bump copilot.vim from f2a4acd to 1729557 (#808)

Bumps [.config/nvim/pack/github/start/copilot.vim](https://github.com/github/copilot.vim) from `f2a4acd` to `1729557`.
- [Commits](github/copilot.vim@f2a4acd...1729557)

---
updated-dependencies:
- dependency-name: ".config/nvim/pack/github/start/copilot.vim"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>