Change development tanuki favicon colors to match logo color order

What does this MR do?

Change the color order of the dev favicon to be more in line with the original favicon/logo

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Make it more consistent with the original logo, instead of an inverted version!

Screenshots (if relevant)

old:

new:

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #28303 (closed)