chore: create release-please-config.json

Author: alp-kurt

.github/release-please-config.json

@@ -0,0 +1,14 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "packages": {
+    ".": {
+      "release-type": "simple",
+      "changelog-path": "CHANGELOG.md",
+      "extra-files": [
+        {
+          "path": "version.txt"
+        }
+      ]
+    }
+  }
+}