Merge branch '347100-fix-snowplow-spec' into 'master'

Clear memoized snowplow class

See merge request gitlab-org/gitlab!75825

spec/lib/gitlab/tracking_spec.rb

@@ -13,6 +13,10 @@ RSpec.describe Gitlab::Tracking do
     described_class.instance_variable_set("@snowplow", nil)
   end
 
+  after do
+    described_class.instance_variable_set("@snowplow", nil)
+  end
+
   describe '.options' do
     shared_examples 'delegates to destination' do |klass|
       before do