2FA and Github: how to solve could not read Username for 'https://github.com'

This is a follow-up for issue #43 . I just tried with a new release - still have some issues.

You can find drone.yml here: https://github.com/jobrunr/jobrunr/blob/master/.drone.yml.

__What I try to do__: update the Readme with the latest version (so the tag)
__How do I try it__:

```yml
- name: update readme
image: jobrunr.io/build-container:1.0
commands:
- rm -f *.hprof
- sed -i "s@.*@${DRONE_TAG}@g" README.md # replace version in README
- sed -i "s@'org.jobrunr:jobrunr:.*'@'org.jobrunr:jobrunr:${DRONE_TAG}'@g" README.md # replace version in README
- git config --global --add url."git@github.com:".insteadOf "https://github.com/" # Switch to ssh instead of https

- name: push updated readme
image: appleboy/drone-git-push
settings:
branch: master
remote_name: origin
ssh_key:
from_secret: GITHUB_SSH_KEY
force: false
commit: true
commit_message: "Update readme to new version [CI SKIP]"
author_name: drone-bot
author_email: drone-bot@jobrunr.io
```

The output for step `push updated readme`:

```
latest: Pulling from appleboy/drone-git-push
--
2 | Digest: sha256:144fd3130840d8ca0eba4b2aa98da027086d2d3fee6f2fbf4914564ad0a3b3f1
3 | Status: Image is up to date for appleboy/drone-git-push:latest
4 | + git add --all
5 | + git diff-index --quiet HEAD --ignore-submodules
6 | + git commit -m Update readme to new version [CI SKIP]
7 | + git push origin HEAD:master
8 | fatal: could not read Username for 'https://github.com': terminal prompts disabled
9 | exit status 128

```

Any idea on how to solve this?

Thanks again,
Ronald