[CI] Add initial audit.yaml

https://www.alexedwards.net/blog/ci-with-go-and-github-actions

// Closes #18

Signed-off-by: Julian Strobl <jmastr@mailbox.org>

.github/workflows/audit.yaml

@@ -0,0 +1,45 @@
+---
+name: Audit
+
+on: [push]
+
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: [ '1.19', '1.20' ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      - name: Verify dependencies
+        run: go mod verify
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Run go vet
+        run: go vet ./...
+
+      - name: Install staticcheck
+        run: go install honnef.co/go/tools/cmd/staticcheck@latest
+
+      - name: Run staticcheck
+        run: staticcheck ./...
+        continue-on-error: true
+
+      - name: Install golint
+        run: go install golang.org/x/lint/golint@latest
+
+      - name: Run golint
+        run: golint -set_exit_status ./...
+        continue-on-error: true
+
+      - name: Run tests
+        run: go test -race -vet=off ./...