Applyed Patch for CI/CD Icons

What does this MR do?

EE Port of gitlab-org/gitlab-ce!14567 to convert icons for CI to SVG Sprite icons

Why was this MR needed?

To make everything faster and better with SVG Sprites

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests added for this feature/bug
• Review
  • Has been reviewed by UX
  • Has been reviewed by Frontend
  • Has been reviewed by Backend
  • Has been reviewed by Database
• Conform by the merge request performance guides
• Conform by the style guides
• Squashed related commits together

What are the relevant issue numbers?

gitlab-org/gitlab-ce#36231