[fullrelease] from a drone.ci fails due to missing git auth

[laur89]

I'm trying to do a fullrelease from drone CI node with config like:

---
kind: pipeline
type: docker
name: default

steps:
# note zest does everything, including tagging!
- name: version-tag-changelog
  image: python:3-bookworm
  commands:
  - git config --global user.email "zest.releaser@example.com"
  - git config --global user.name "Zest Releaser"
  - pip install zest.releaser
  - fullrelease --no-input
  when:
    branch:
    - master

This will result in changelog change, and push to git fails with:

INFO: OK to commit this
INFO: Auto-responding 'yes'.
INFO: [master 734674d] Back to development: 0.6.5

 2 files changed, 7 insertions(+), 1 deletion(-)


INFO: OK to push commits to the server?
INFO: Auto-responding 'yes'.
ERROR: exit code 128.

fatal: could not read Username for 'https://github.com': terminal prompts disabled

as expected.

Is there a way to provide git auth in a declarative way?