Add user zklaus

[zklaus]

To obtain access to the CI server, you must complete the form below:

• I have read the Terms of Service and Privacy Policy and accept them.
• I have included my GitHub username and unique identifier to the relevant access/*.json file.

For context, I now help with the maintenance of qt-webengine, which runs out of time on our regular ci.

[zklaus]

ping @jaimergp