Fixing workspace_yarn_version

docker-compose.yml

@@ -32,7 +32,7 @@ services:
           - PUID=${WORKSPACE_PUID}
           - PGID=${WORKSPACE_PGID}
           - NODE_VERSION=${WORKSPACE_NODE_VERSION}
-          - YARN_VERSION=${WORKSPACE_TIMEZONE}
+          - YARN_VERSION=${WORKSPACE_YARN_VERSION}
           - TZ=${WORKSPACE_TIMEZONE}
       volumes_from:
         - applications