[JENKINS-64814] Use API to retrieve project/group avatar where possible - #436

[JENKINS-64814] Use API to retrieve project/group avatar where possible#436

sichapman wants to merge 4 commits into

jenkinsci:masterjenkinsci/gitlab-branch-source-plugin:masterfrom

sichapman:64814-avatar-by-apisichapman/gitlab-branch-source-plugin:64814-avatar-by-apiCopy head branch name to clipboard