Update docker logo path

What does this MR do and why?

Third that resolves https://gitlab.com/gitlab-com/legal-and-compliance/-/issues/616

First MR: gitlab-svgs!809 (merged) - Add support in gitlab-svgs for png

Second MR: gitlab-svgs!810 (merged) - Add docker png

This MR updates the docker logo to a compliant png version of the company-provided logo.

Screenshots or screen recordings

Before:

After:

How to set up and validate locally

• Go to a project without a .gitlab-ci.yml file
• Visit CI/CD >> Pipelines
• You should see the "Get started with GitLab CI/CD" page. This empty state will only appear if there are no tabs.
• If you'd like to force the empty state to appear, you can apply this patch and then visit the page in any project: emptyPipelines.patch
• Scroll down and make sure that the docker logo is a png that looks like this:

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.