refactor create-release-pr to a package

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

packages/extension-api/package.json

@@ -2,7 +2,7 @@
   "name": "@k8slens/extensions",
   "productName": "OpenLens extensions",
   "description": "OpenLens - Open Source Kubernetes IDE: extensions",
-  "version": "6.0.0",
+  "version": "6.4.0-alpha.0",
   "copyright": "© 2022 OpenLens Authors",
   "license": "MIT",
   "main": "dist/src/extension-api.js",
@@ -24,11 +24,6 @@
     "@k8slens/open-lens": "^6.4.0-alpha.0"
   },
   "devDependencies": {
-    "typedoc": "0.23.23",
-    "typedoc-plugin-markdown": "^3.13.6",
-    "typescript": "^4.9.4",
-    "webpack": "^5.75.0",
-    "webpack-cli": "^5.0.1",
     "@types/node": "^16.18.6",
     "@types/webpack": "^5.28.0",
     "@types/webpack-env": "^1.18.0",
@@ -38,6 +33,11 @@
     "style-loader": "^3.3.1",
     "ts-loader": "^9.4.2",
     "ts-node": "^10.9.1",
-    "typescript-plugin-css-modules": "^4.1.1"
+    "typedoc": "0.23.23",
+    "typedoc-plugin-markdown": "^3.13.6",
+    "typescript": "^4.9.4",
+    "typescript-plugin-css-modules": "^4.1.1",
+    "webpack": "^5.75.0",
+    "webpack-cli": "^5.0.1"
   }
 }