Fix GitHub CI workflow

Author: NMAC427

.github/workflows/ci.yml

@@ -21,15 +21,15 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-20.04
+          - os: ubuntu-latest
             url: https://github.com/neovim/neovim/releases/download/nightly/nvim-linux64.tar.gz
-          - os: ubuntu-20.04
-            url: https://github.com/neovim/neovim/releases/download/v0.6.0/nvim-linux64.tar.gz
+          - os: ubuntu-latest
+            url: https://github.com/neovim/neovim/releases/download/v0.10.4/nvim-linux64.tar.gz
     steps:
       - uses: actions/checkout@v2
       - run: date +%F > todays-date
       - name: Restore from todays cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: _neovim
           key: ${{ runner.os }}-${{ matrix.url }}-${{ hashFiles('todays-date') }}