ci: upgrade checkout and cache actions

Author: cpea2506

.github/workflows/check.yaml

@@ -10,7 +10,7 @@ jobs:
     name: "Formatting check with Stylua"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Lint with stylua
         uses: JohnnyMorganz/[email protected]
         with:
@@ -20,7 +20,7 @@ jobs:
     name: "Linter check with Selene"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: NTBBloodbath/[email protected]
         with:
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yaml

@@ -14,7 +14,7 @@ jobs:
         with:
           release-type: simple
           package-name: one_monokai.nvim
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: tag major and minor versions
         if: ${{ steps.release.outputs.release_created }}
         run: |

.github/workflows/test.yaml

@@ -26,10 +26,10 @@ jobs:
             url: https://github.com/neovim/neovim/releases/download/nightly/nvim-macos-arm64.tar.gz
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - run: date +%F > todays-date
       - name: Restore cache for today's nightly.
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: _neovim
           key: ${{ runner.os }}-${{ matrix.url }}-${{ hashFiles('todays-date') }}