I'm trying to get started on percona postgres, but unfortunately I am stuck on Postgis install (centos 7)

I can install an old version (2.0) which is incompatible, but I cannot install the proper postgis package version 2.5.x for postgres 11

When I try to install it, I have dependencies issues telling me:
Error: percona-postgresql11 conflicts with postgresql11-11.5-1PGDG.rhel7.x86_64
Error: percona-postgresql11-libs conflicts with postgresql11-libs-11.5-1PGDG.rhel7.x86_64

I imported repo :
$ sudo yum install [url]https://download.postgresql.org/pub/repos/yum/11/redhat/rhel-7-x86_64/pgdg-centos11-11-2.noarch.rpm[/url]

Then installed it :
$ sudo yum install postgis25_11

It does not seems percona repo have postgis, but I could be wrong

Is it possible ? Any workaround or mistake I made ?