[gluster-packaging] glusterfs-5.11 released

[jenkins at build.gluster.org]

SRC: https://build.gluster.org/job/release-new/105/artifact/glusterfs-5.11.tar.gz
HASH: https://build.gluster.org/job/release-new/105/artifact/glusterfs-5.11.sha512sum

This release is made off jenkins-release-105