fix(lsp): do not warn about unscoped package name (#29463)

It's useful to just use a bare specifier for the package name in a
workspace when not publishing to JSR.

Author: dsherret

cli/schemas/config-file.v1.json

@@ -709,8 +709,7 @@
     },
     "name": {
       "type": "string",
-      "description": "The name of this JSR package. Must be scoped",
-      "pattern": "^@[a-z0-9-]+/[a-z0-9-]+$"
+      "description": "The name of this JSR or workspace package."
     },
     "version": {
       "type": "string",