Update CI actions

.github/workflows/ci.yml

@@ -7,39 +7,43 @@ jobs:
   bats-test:
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-18.04, macos-10.15, macos-11]
+        os: [ubuntu-20.04, ubuntu-22.04, macos-12, macos-11]
 
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Install greadlink
       if: startsWith(runner.os, 'macOS')
       run: brew install coreutils
     - name: Install parallel
       if: startsWith(runner.os, 'macOS')
       run: brew install parallel
     - name: Test code
-      shell: 'script -q -e -c "bash {0}"'
       run: test/run
 
   lint:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v4
       with:
-        go-version: 1.17
+        go-version: 1.21.0
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: 3.8
     - name: Install shfmt
-      run: GO111MODULE=on go get mvdan.cc/sh/v3/cmd/shfmt
+      run: go install mvdan.cc/sh/v3/cmd/shfmt@latest
     - name: Install shellcheck
-      run: brew install shellcheck
+      env:
+        scversion: stable # Or latest, vxx, etc
+      run: |
+        wget -qO- "https://github.com/koalaman/shellcheck/releases/download/${scversion?}/shellcheck-${scversion?}.linux.x86_64.tar.xz" | tar -xJv "shellcheck-${scversion}/shellcheck"
+        sudo cp "shellcheck-${scversion}/shellcheck" /usr/bin/
+        shellcheck --version
     - name: Install pre-commit
       run: python3 -m pip install pre-commit
     - name: Run lint