yarn: bump to 3.8.1 & bump @yarnpkg/upgrade plugin-workspace-tools

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.yarnrc.yml

@@ -4,10 +4,10 @@ httpTimeout: 300000
 
 nodeLinker: node-modules
 
-npmRegistryServer: 'https://registry.npmjs.org/'
+npmRegistryServer: "https://registry.npmjs.org/"
 
 plugins:
   - path: .yarn/plugins/@yarnpkg/plugin-workspace-tools.cjs
-    spec: '@yarnpkg/plugin-workspace-tools'
+    spec: "@yarnpkg/plugin-workspace-tools"
 
-yarnPath: .yarn/releases/yarn-3.2.3.cjs
+yarnPath: .yarn/releases/yarn-3.8.1.cjs