fix: use dimension reference syntax {full_name} instead of {users}.full_name in test

In Cube YAML, {dimension_name} references another dimension in the same
cube. {cube_name}.column is not valid in this context.

Co-authored-by: Pavel Tiunov <pavel.tiunov@gmail.com>

Author: cursoragent

packages/cubejs-schema-compiler/test/unit/links.test.ts

@@ -19,7 +19,7 @@ cubes:
         links:
           - name: google_search
             label: Search on Google
-            url: "CONCAT('https://www.google.com/search?q=', {users}.full_name)"
+            url: "CONCAT('https://www.google.com/search?q=', {full_name})"
             icon: brand-google
             target: blank
           - name: email