Merge branch 'fix-unhandled-colons' into 'master'

fix: handle multiple colons in docker image

Closes #65

See merge request to-be-continuous/docker!94

templates/gitlab-ci-docker.yml

@@ -843,7 +843,7 @@ docker-publish:
           log_warn "[semantic-release] no new version to release: skip"
           exit 0
         else
-          DOCKER_RELEASE_IMAGE=$(echo "$DOCKER_RELEASE_IMAGE" | sed "s/\(:.*\)\{0,1\}$/:$SEMREL_INFO_NEXT_VERSION/")
+          DOCKER_RELEASE_IMAGE="${DOCKER_RELEASE_IMAGE%:*}:$SEMREL_INFO_NEXT_VERSION"
           log_info "[semantic-release] new Image tag is set: $DOCKER_RELEASE_IMAGE"
         fi
       fi