Duplicate specs testing emoji awards on issues

What does this MR do?

Combines emoji award spec files into single user_interacts_with_awards_in_issue_spec.rb file

The following test files have been removed:

• spec/features/issues/award_spec.rb
• spec/features/projects/awards/user_interacts_with_awards_in_issue_spec.rb
• spec/features/issues/award_emoji_spec.rb

What are the relevant issue numbers?

Closes #45238 (closed)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• (n/a) Documentation created/updated
• Tests added for this feature/bug
• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• (n/a) Conforms to the database guides