ci: update nvim v0.9.1

Author: mhanberg

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
             manager: sudo apt-get
             packages: -y fd-find esl-erlang elixir
           - os: ubuntu-20.04
-            url: https://github.com/neovim/neovim/releases/download/v0.9.0/nvim-linux64.tar.gz
+            url: https://github.com/neovim/neovim/releases/download/v0.9.1/nvim-linux64.tar.gz
             manager: sudo apt-get
             packages: -y fd-find esl-erlang elixir
           - os: ubuntu-20.04