Refactor signature to use pajamas badge component

What does this MR do and why?

Uses pajamas badge component for commit signatures.

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Create an SSH key and add it to your GitLab account.

2. Configure git to sign commits with SSH.

3. Clone any repository from your local and made any change there.

4. Add a new SSH signed commit and push it

   git commit -S -m 'This commit is signed with ssh'
   git push origin <branch name>

5. Reload the project page. There should be a verified badge on your commit.

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.

Related to #387001 (closed)