chore: add GitHub workflows for linting, testing, and release management

- Introduced dependabot configuration for Go modules and GitHub Actions.
- Added linting workflow to enforce code quality on pushes and pull requests.
- Created release workflow to automate versioning and releases based on tags.
- Implemented testing workflow to run tests across multiple Go versions and OS environments.

.github/workflows/lint.yml

@@ -0,0 +1,32 @@
+name: Lint
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: stable
+          cache: true
+
+      - name: Run go vet
+        run: go vet ./...
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: latest
+          args: --timeout 5m