Update create_personal_snippet_spec.rb, remove smoke test tag

qa/qa/specs/features/browser_ui/3_create/snippet/create_personal_snippet_spec.rb

 # frozen_string_literal: true
 
 module QA
-  RSpec.describe 'Create', :smoke do
+  RSpec.describe 'Create' do # convert back to a smoke test once proved to be stable
     describe 'Personal snippet creation' do
       it 'user creates a personal snippet', testcase: 'https://gitlab.com/gitlab-org/quality/testcases/-/issues/1704' do
         Flow::Login.sign_in