update CI

.github/workflows/go.yml

@@ -3,25 +3,19 @@ on: [push]
 jobs:
 
   build:
-    name: Build
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go: [ '1.13', '1.14' ]
+        go-version: [ '1.20', '1.21' ]
 
     steps:
-    - name: Set up Go ${{ matrix.go }}
-      uses: actions/setup-go@v1
-      with:
-        go-version: ${{ matrix.go }}
-      id: go
-
     - name: Check out code into the Go module directory
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
-    - name: Get dependencies
-      run: |
-        go get -v -t -d ./...
+    - name: Set up Go ${{ matrix.go-version }}
+      uses: actions/setup-go@v4
+      with:
+        go-version: ${{ matrix.go-version }}
 
     - name: Test
       run: go test -v .