deps(yarn): Update to v4.

.moon/toolchain.yml

@@ -5,11 +5,7 @@ node:
   version: '18.14.0'
   packageManager: 'yarn'
   yarn:
-    version: '3.6.3'
-    plugins:
-      - 'interactive-tools'
-      - 'version'
-      - 'workspace-tools'
+    version: '4.0.0'
 
   # Do not add an engines constraint as its abrasive for open source.
   addEnginesConstraint: false

.yarnrc.yml

@@ -1,3 +1,5 @@
+compressionLevel: mixed
+
 enableGlobalCache: true
 
 enableTelemetry: false
@@ -12,12 +14,4 @@ logFilters:
 
 nodeLinker: node-modules
 
-plugins:
-  - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.cjs
-    spec: '@yarnpkg/plugin-interactive-tools'
-  - path: .yarn/plugins/@yarnpkg/plugin-version.cjs
-    spec: '@yarnpkg/plugin-version'
-  - path: .yarn/plugins/@yarnpkg/plugin-workspace-tools.cjs
-    spec: '@yarnpkg/plugin-workspace-tools'
-
-yarnPath: .yarn/releases/yarn-3.6.3.cjs
+yarnPath: .yarn/releases/yarn-4.0.0.cjs

package.json

@@ -23,5 +23,5 @@
     "prettier": "^3.0.3",
     "typescript": "^5.2.2"
   },
-  "packageManager": "yarn@3.6.3"
+  "packageManager": "yarn@4.0.0"
 }