Avoid company name collisions in CRM fixture

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/76313 added a
fixture that generated company names for every group in the system.
It's not too hard to generate a collision. We append an index to the
name to ensure there's no chance of a name collision.

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/348229

db/fixtures/development/32_crm.rb

@@ -12,10 +12,10 @@ class Gitlab::Seeder::Crm
   def seed!
     organization_ids = []
 
-    organizations_per_group.times do
+    organizations_per_group.times do |index|
       organization_ids << ::CustomerRelations::Organization.create!(
         group_id: group.id,
-        name: FFaker::Company.name
+        name: "#{FFaker::Company.name}-#{index}"
       ).id
 
       print '.'