Fix Rails logger reference

Signed-off-by: Cy Rossignol <cy@rossignols.me>

Author: cyrossignol

app/middleware/workspaces_elevator.rb

@@ -9,7 +9,7 @@ def parse_tenant_name(request)
     return nil if workspace_id.blank?
     return nil unless workspace_id.match?(/^\d+$/)
 
-    logger.info("Selecting workspace #{workspace_id}")
+    Rails.logger.info("Selecting workspace #{workspace_id}")
 
     "workspace-#{workspace_id}"
   end