CI(deps): Update docker/metadata-action action to v6 (releasebranch_8_5)#7168

echoix merged 1 commit intoreleasebranch_8_5OSGeo/grass:releasebranch_8_5from

renovate/releasebranch_8_5-docker-metadata-action-6.xOSGeo/grass:renovate/releasebranch_8_5-docker-metadata-action-6.xCopy head branch name to clipboard