build(deps): bump pynvim from 0.5.0 to 0.5.2

Bumps [pynvim](https://github.com/neovim/pynvim) from 0.5.0 to 0.5.2.
- [Release notes](https://github.com/neovim/pynvim/releases)
- [Commits](neovim/pynvim@0.5.0...0.5.2)

---
updated-dependencies:
- dependency-name: pynvim
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -1,3 +1,3 @@
-pynvim==0.5.0
+pynvim==0.5.2
 requests==2.32.3
 simple-websocket-server==0.4.4