ci: add build workflow

This workflow will build and test the project and calculate test coverage on every:
- push to main
- new PR to main created
- commits added to PRs targeting main

.github/workflows/build.yml

@@ -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: Build and test
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+    steps:
+    - uses: actions/checkout@v3
+
+    - uses: actions/setup-go@v4
+      with:
+        go-version: '1.18'
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test with coverage
+      run: go test -v -race -covermode=atomic -coverprofile=coverage.out ./...
+
+    - name: Upload coverage reports to Codecov
+      uses: codecov/codecov-action@v3
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}