ci: neovim nightly name was changed #471

see neovim/neovim#32194

also fix new prettier failure:

    > prettier --check . && eslint --format=unix .
    Checking formatting...
    [warn] nvim-macos-x86_64/share/nvim/runtime/pack/dist/opt/netrw/README.md
    [warn] Code style issues found in the above file. Run Prettier with --write to fix.
    Error: Process completed with exit code 1.

.github/workflows/ci.yml

@@ -32,8 +32,8 @@ jobs:
             node: '16'
         include:
           - os: ubuntu-latest
-            NIGHTLY: nvim-linux64.tar.gz
-            NVIM_BIN_PATH: nvim-linux64/bin
+            NIGHTLY: nvim-linux-x86_64.tar.gz
+            NVIM_BIN_PATH: nvim-linux-x86_64/bin
             EXTRACT: tar xzf
           - os: macos-latest
             NIGHTLY: nvim-macos-x86_64.tar.gz

.prettierignore

@@ -1,2 +1,3 @@
-# some tests seem to create these files in CI
-nvim-win64
+nvim-win64/
+nvim-macos-x86_64/
+nvim-linux-x86_64/