Use eslint-plugin-package-json for sort-package-json mixin instead of custom processor

Co-authored-by: iclanton <5010588+iclanton@users.noreply.github.com>

Author: Copilot

common/config/rush/browser-approved-packages.json

@@ -62,6 +62,14 @@
       "name": "dependency-path",
       "allowedCategories": [ "libraries" ]
     },
+    {
+      "name": "eslint-plugin-package-json",
+      "allowedCategories": [ "libraries" ]
+    },
+    {
+      "name": "jsonc-eslint-parser",
+      "allowedCategories": [ "libraries" ]
+    },
     {
       "name": "office-ui-fabric-core",
       "allowedCategories": [ "libraries" ]

common/config/subspaces/build-tests-subspace/pnpm-lock.yaml

@@ -1,6 +1,6 @@
 // DO NOT MODIFY THIS FILE MANUALLY BUT DO COMMIT IT. It is generated and used by Rush.
 {
-  "pnpmShrinkwrapHash": "5678d05a5d8ff316ed0beb3ddd4b8048823237bf",
+  "pnpmShrinkwrapHash": "1e9f75e9c3cbb717750b20d630f5dcb0d6a3c22f",
   "preferredVersionsHash": "550b4cee0bef4e97db6c6aad726df5149d20e7d9",
-  "packageJsonInjectedDependenciesHash": "5a12096392afaaf176e5134102e4a4d0ed840ada"
+  "packageJsonInjectedDependenciesHash": "9a88af1b457fa43bfcfbab4f990c3d80fa173e34"
 }