perl-YAML-LibYAML from network:otrs project

For openSUSE Factory run the following as root:

zypper addrepo https://download.opensuse.org/repositories/network:otrs/openSUSE_Factory/network:otrs.repo
zypper refresh
zypper install perl-YAML-LibYAML

For 15.4 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/network:otrs/15.4/network:otrs.repo
zypper refresh
zypper install perl-YAML-LibYAML

For 15.3 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/network:otrs/15.3/network:otrs.repo
zypper refresh
zypper install perl-YAML-LibYAML

For SLE 15 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/network:otrs/SLE_15/network:otrs.repo
zypper refresh
zypper install perl-YAML-LibYAML

For SLE 12 run the following as root:

zypper addrepo https://download.opensuse.org/repositories/network:otrs/SLE_12/network:otrs.repo
zypper refresh
zypper install perl-YAML-LibYAML