Replace plugin with "official" version

The plugin has been reinstalled from the LavaMoat repository. Comments
have also been removed from the `.yarnrc.yml` file.

.yarn/plugins/@yarnpkg/plugin-allow-scripts.cjs

@@ -0,0 +1,9 @@
+/* eslint-disable */
+//prettier-ignore
+module.exports = {
+name: "@yarnpkg/plugin-allow-scripts",
+factory: function (require) {
+var plugin=(()=>{var a=Object.create,l=Object.defineProperty;var i=Object.getOwnPropertyDescriptor;var s=Object.getOwnPropertyNames;var p=Object.getPrototypeOf,c=Object.prototype.hasOwnProperty;var u=e=>l(e,"__esModule",{value:!0});var f=e=>{if(typeof require!="undefined")return require(e);throw new Error('Dynamic require of "'+e+'" is not supported')};var g=(e,o)=>{for(var r in o)l(e,r,{get:o[r],enumerable:!0})},m=(e,o,r)=>{if(o&&typeof o=="object"||typeof o=="function")for(let t of s(o))!c.call(e,t)&&t!=="default"&&l(e,t,{get:()=>o[t],enumerable:!(r=i(o,t))||r.enumerable});return e},x=e=>m(u(l(e!=null?a(p(e)):{},"default",e&&e.__esModule&&"default"in e?{get:()=>e.default,enumerable:!0}:{value:e,enumerable:!0})),e);var k={};g(k,{default:()=>d});var n=x(f("@yarnpkg/shell")),y={hooks:{afterAllInstalled:async()=>{let e=await(0,n.execute)("yarn run allow-scripts");e!==0&&process.exit(e)}}},d=y;return k;})();
+return plugin;
+}
+};

.yarnrc.yml

@@ -1,19 +1,13 @@
-# We use allow-scripts to manually enable scripts and then run them
 enableScripts: false
 
-# This ignores the warnings caused by `enableScripts`
 logFilters:
   - code: YN0004
     level: discard
 
-# This ensures Yarn still uses a `node_modules` directory, which is required
-# right now for TypeScript to find @types/* packages
 nodeLinker: node-modules
 
 plugins:
-  # This plugin runs `allow-scripts` automatically after install
-  # TODO: migrate to the "official" version of this plugin: https://github.com/LavaMoat/LavaMoat/pull/345
-  - path: .yarn/plugins/plugin-allow-scripts.cjs
-    spec: plugin-allow-scripts.js
+  - path: .yarn/plugins/@yarnpkg/plugin-allow-scripts.cjs
+    spec: "https://raw.githubusercontent.com/LavaMoat/LavaMoat/main/packages/yarn-plugin-allow-scripts/bundles/@yarnpkg/plugin-allow-scripts.js"
 
 yarnPath: .yarn/releases/yarn-3.2.1.cjs