Update Go version in CI (#32)

* Update Go version in CI

* Remove obsolete GO111MODULE: off

* Update github actions

.github/workflows/ci.yml

@@ -4,29 +4,28 @@ jobs:
   test:
     env:
       GOPATH: ${{ github.workspace }}
-      GO111MODULE: off
 
     defaults:
       run:
         working-directory: ${{ env.GOPATH }}/src/github.com/${{ github.repository }}
 
     strategy:
       matrix:
-        go-version: [1.14.x, 1.15.x, 1.16.x]
+        go-version: [1.16.x, 1.19.x, 1.22.x]
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     runs-on: ${{ matrix.os }}
 
     steps:
-    - name: Install Go
-      uses: actions/setup-go@v2
-      with:
-        go-version: ${{ matrix.go-version }}
-    - name: Checkout code
-      uses: actions/checkout@v2
-      with:
-        path: ${{ env.GOPATH }}/src/github.com/${{ github.repository }}
-    - name: Test
-      run: |
-        go get -d -t ./...
-        go test -v ./...
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          path: ${{ env.GOPATH }}/src/github.com/${{ github.repository }}
+      - name: Test
+        run: |
+          go get -d -t ./...
+          go test -v ./...