ci action v4

Author: ray-x

.github/workflows/ci.yml

@@ -10,14 +10,14 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-22.04
+          - os: ubuntu-latest
             url: https://github.com/neovim/neovim/releases/download/nightly/nvim-linux-x86_64.tar.gz
           - os: ubuntu-22.04
             url: https://github.com/neovim/neovim/releases/download/v0.9.5/nvim-linux64.tar.gz
-          - os: ubuntu-22.04
+          - os: ubuntu-latest
             url: https://github.com/neovim/neovim/releases/download/v0.10.4/nvim-linux-x86_64.tar.gz
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: date +%F > todays-date
       - name: Restore cache for today's nightly.
         uses: actions/cache@v4