ci: add release config

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+    ".": "0.0.1"
+}

pkg/version/version.go

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+package version
+
+// SDKVersion is the library's version following Semantic Versioning.
+const SDKVersion = "0.0.1" // x-release-please-version

release-please-config.json

@@ -0,0 +1,27 @@
+{
+    "bump-minor-pre-major": true,
+    "bump-patch-for-minor-pre-major": true,
+    "draft": false,
+    "prerelease": false,
+    "draft-pull-request": true,
+    "changelog-sections": [
+      { "type": "feat", "section": "Features", "hidden": false },
+      { "type": "fix", "section": "Bug Fixes", "hidden": false },
+      { "type": "chore", "section": "Miscellaneous", "hidden": false },
+      { "type": "perf", "section": "Performance Improvements", "hidden": false },
+      { "type": "revert", "section": "Reverts", "hidden": false },
+      { "type": "build", "section": "Build System", "hidden": false }
+    ],
+    "release-type": "simple",
+    "release-as": "0.0.1",
+    "pull-request-title-pattern": "chore: release v${version}",
+    "packages": {
+      ".": {
+        "changelog-path": "CHANGELOG.md",
+        "extra-files": [
+          "pkg/version/version.go"
+        ]
+      }
+    },
+    "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"
+  }