[JENKINS-59777] Allow nested docker.withRegistry() blocks#82

arthurvanduynhoven wants to merge 2 commits intojenkinsci:masterjenkinsci/docker-commons-plugin:masterfrom

arthurvanduynhoven:JENKINS-59777-AllowNestedDockerCredentialBlocksarthurvanduynhoven/docker-commons-plugin:JENKINS-59777-AllowNestedDockerCredentialBlocksCopy head branch name to clipboard