Introduce GHA CI workflows

- Linting using golangci-lint[1]
- Execute unit & integration tests

[1] https://github.com/golangci/golangci-lint

.github/workflows/lint.yml

@@ -0,0 +1,18 @@
+name: Lint
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.23.x'
+          cache: false
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: "v1.61.0"

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+name: Test
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.23.x'
+      - name: Install dependencies
+        run: go get .
+      - name: Set up gotestfmt
+        run: go install github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@latest
+      - name: Build
+        run: go build -v ./...
+      - name: Unit & Integration Tests
+        run: go test -v -json -race -coverprofile=cover.out ./... | gotestfmt