fix(deps): update dependency @edx/brand to v1.2.0

Author: renovate[bot]

package-lock.json

@@ -29,7 +29,7 @@
     "url": "https://github.com/openedx/frontend-app-learning/issues"
   },
   "dependencies": {
-    "@edx/brand": "npm:@edx/brand-openedx@1.1.0",
+    "@edx/brand": "npm:@edx/brand-openedx@1.2.0",
     "@edx/frontend-component-footer": "11.6.3",
     "@edx/frontend-component-header": "3.6.4",
     "@edx/frontend-lib-special-exams": "2.2.1",