ci(release): setup release-please for release automation

.github/.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.0.0"
+}

.github/release-please-config.json

@@ -0,0 +1,14 @@
+{
+  "initial-version": "0.0.1",
+  "packages": {
+    ".": {
+      "release-type": "go",
+      "changelog-path": "CHANGELOG.md",
+      "bump-minor-pre-major": true,
+      "bump-patch-for-minor-pre-major": true,
+      "draft": false,
+      "prerelease": false
+    }
+  },
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"
+}

.github/workflows/ci.yml

@@ -67,3 +67,13 @@ jobs:
           go-version: ${{ matrix.go_version }}
       - name: Run tests
         run: go test -v -count=1 -race ./...
+
+  release-please:
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/main'
+    outputs:
+      release_created: ${{ steps.release-please.outputs.release_created }}
+      version: ${{ steps.release-please.outputs.version }}
+    steps:
+      - uses: jimeh/release-please-manifest-action@v1
+        id: release-please