gitlab-foss

Replace ci icons with slightly thicker ones

## What does this MR do?
Adds updated CI icons

## Why was this MR needed?
New CI icons were a tad too thin

## What are the relevant issue numbers?
Closes #20089 

## Screenshots (if relevant)
![Screen_Shot_2016-07-26_at_8.59.28_AM](/uploads/35671085829fd64f8a9cf98704661ece/Screen_Shot_2016-07-26_at_8.59.28_AM.png)

See merge request !5475