kubernetes plugin adds support for the new plugin system (#16719)

* kubernetes plugin adds support for the new plugin system

Signed-off-by: Oleg S <97077423+RobotSail@users.noreply.github.com>

* expose experimental plugin support as an alpha feature in kubernetes-backend

Signed-off-by: Oleg S <97077423+RobotSail@users.noreply.github.com>

* remove duplicate changeset

Signed-off-by: Oleg S <97077423+RobotSail@users.noreply.github.com>

* update permissions

Signed-off-by: Oleg S <97077423+RobotSail@users.noreply.github.com>

---------

Signed-off-by: Oleg S <97077423+RobotSail@users.noreply.github.com>

plugins/kubernetes-backend/package.json

@@ -10,6 +10,21 @@
     "main": "dist/index.cjs.js",
     "types": "dist/index.d.ts"
   },
+  "exports": {
+    ".": "./src/index.ts",
+    "./alpha": "./src/alpha.ts",
+    "./package.json": "./package.json"
+  },
+  "typesVersions": {
+    "*": {
+      "alpha": [
+        "src/alpha.ts"
+      ],
+      "package.json": [
+        "package.json"
+      ]
+    }
+  },
   "backstage": {
     "role": "backend-plugin"
   },
@@ -36,11 +51,13 @@
   "dependencies": {
     "@azure/identity": "^2.0.4",
     "@backstage/backend-common": "workspace:^",
+    "@backstage/backend-plugin-api": "workspace:^",
     "@backstage/catalog-client": "workspace:^",
     "@backstage/catalog-model": "workspace:^",
     "@backstage/config": "workspace:^",
     "@backstage/errors": "workspace:^",
     "@backstage/plugin-auth-node": "workspace:^",
+    "@backstage/plugin-catalog-node": "workspace:^",
     "@backstage/plugin-kubernetes-common": "workspace:^",
     "@backstage/plugin-permission-common": "workspace:^",
     "@backstage/plugin-permission-node": "workspace:^",