Update go version and add ci

.github/workflows/go.yaml

@@ -0,0 +1,35 @@
+# This workflow will build a golang project
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
+
+name: Go
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.20'
+    - name: Install staticcheck
+      run: |
+        if ! command -v staticcheck &> /dev/null
+        then
+          go install honnef.co/go/tools/cmd/staticcheck@latest
+        fi
+      shell: bash
+    - name: Lint
+      run: staticcheck ./...
+    - name: Build
+      run: go build -v ./...
+    - name: Test
+      run: go test -v ./...

go.mod

@@ -1,5 +1,5 @@
 module github.com/ikorihn/xron
 
-go 1.17
+go 1.20
 
 require github.com/google/go-cmp v0.6.0