EntityGithubInsightsReadmeCard does not handle relative links

[lazytesting]

Expected Behavior

Relative links in the readme.md should work. This means that they lead to an url in this format:
https://github.com/{org}/{repo}/{file}

Current Behavior

Currently the links don't work as they link to https://api.github.com/{org}/{repo}/{file} (api subdomain)

Steps to Reproduce

Example: in the root folder of the repo I have readme.md
readme.md has a relative link to /folder/more-info.md

In that case the link in backstage resolves to: https://api.github.com/organisation/repo/folder.md

Possible Solution

Context

• deeplinks in readme files are not working

Your Environment

• @backstage/plugin-catalog-react version: 1.16.1
• @backstage/integration version: version 1.2.5