I was able to reproduce this.
Please find the reproducer steps for RHEL 9.4:

Set release for RHEL 9.4:

1. yum install idm-pki*

1. yum install idm-pki
   Updating Subscription Management repositories.
   Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) 4.2 MB/s | 35 MB 00:08
   Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) 8.1 MB/s | 43 MB 00:05
   Last metadata expiration check: 0:00:02 ago on Thu 17 Jul 2025 02:42:10 PM IST.
   No match for argument: idm-pki
   Error: Unable to find a match: idm-pki
   [root@localhost ~]# yum install idm-pki*
   Updating Subscription Management repositories.
   Last metadata expiration check: 0:00:16 ago on Thu 17 Jul 2025 02:42:10 PM IST.
   Dependencies resolved.
   ===================================================================================================================================================================================================
   Package Architecture Version Repository Size
   ===================================================================================================================================================================================================
   Installing:
   idm-pki-acme noarch 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 205 k
   idm-pki-base noarch 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 274 k
   idm-pki-ca noarch 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 2.0 M
   idm-pki-est noarch 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 52 k <--- here
   idm-pki-java noarch 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 724 k
   idm-pki-kra noarch 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 365 k
   idm-pki-server noarch 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 3.5 M
   idm-pki-tools x86_64 11.5.0-2.el9_4 rhel-9-for-x86_64-appstream-rpms 991 k
   Installing dependencies:
   .
   .

[root@localhost ~]# subscription-manager release --unset
Release preference has been unset

[root@localhost ~]# subscription-manager release --set=9.6
Release set to: 9.6

[root@localhost ~]# dnf update
Updating Subscription Management repositories.
Red Hat Enterprise Linux 9 for x86_64 - BaseOS (RPMs) 5.5 MB/s | 67 MB 00:12
Red Hat Enterprise Linux 9 for x86_64 - AppStream (RPMs) 7.0 MB/s | 64 MB 00:09
Last metadata expiration check: 0:00:04 ago on Thu 17 Jul 2025 02:45:13 PM IST.
Error:
Problem 1: cannot install both idm-pki-server-11.6.0-3.el9.noarch from rhel-9-for-x86_64-appstream-rpms and idm-pki-server-11.5.1-1.el9.noarch from rhel-9-for-x86_64-appstream-rpms

• package idm-pki-est-11.5.1-1.el9.noarch from rhel-9-for-x86_64-appstream-rpms requires idm-pki-server = 11.5.1-1.el9, but none of the providers can be installed
• package idm-pki-est-11.5.1-1.el9.noarch from rhel-9-for-x86_64-appstream-rpms requires mvn(org.dogtagpki.pki:pki-server) = 11.5.1.SNAPSHOT, but none of the providers can be installed
• cannot install the best update candidate for package idm-pki-server-11.5.0-2.el9_4.noarch
• cannot install the best update candidate for package idm-pki-est-11.5.0-2.el9_4.noarch
  Problem 2: problem with installed package idm-pki-est-11.5.0-2.el9_4.noarch
• package idm-pki-est-11.5.0-2.el9_4.noarch from @System requires mvn(org.dogtagpki.pki:pki-server) = 11.5.0.SNAPSHOT, but none of the providers can be installed
• package idm-pki-est-11.5.0-2.el9_4.noarch from rhel-9-for-x86_64-appstream-rpms requires mvn(org.dogtagpki.pki:pki-server) = 11.5.0.SNAPSHOT, but none of the providers can be installed
• package idm-pki-est-11.5.1-1.el9.noarch from rhel-9-for-x86_64-appstream-rpms requires idm-pki-server = 11.5.1-1.el9, but none of the providers can be installed
• package idm-pki-est-11.5.1-1.el9.noarch from rhel-9-for-x86_64-appstream-rpms requires mvn(org.dogtagpki.pki:pki-server) = 11.5.1.SNAPSHOT, but none of the providers can be installed
• cannot install both idm-pki-server-11.6.0-3.el9.noarch from rhel-9-for-x86_64-appstream-rpms and idm-pki-server-11.5.0-2.el9_4.noarch from @System
• cannot install both idm-pki-server-11.6.0-3.el9.noarch from rhel-9-for-x86_64-appstream-rpms and idm-pki-server-11.5.0-1.el9.noarch from rhel-9-for-x86_64-appstream-rpms
• cannot install both idm-pki-server-11.6.0-3.el9.noarch from rhel-9-for-x86_64-appstream-rpms and idm-pki-server-11.5.0-2.el9_4.noarch from rhel-9-for-x86_64-appstream-rpms
• cannot install both idm-pki-server-11.6.0-3.el9.noarch from rhel-9-for-x86_64-appstream-rpms and idm-pki-server-11.5.1-1.el9.noarch from rhel-9-for-x86_64-appstream-rpms
• package idm-pki-acme-11.6.0-3.el9.noarch from rhel-9-for-x86_64-appstream-rpms requires idm-pki-server = 11.6.0-3.el9, but none of the providers can be installed
• package idm-pki-acme-11.6.0-3.el9.noarch from rhel-9-for-x86_64-appstream-rpms requires mvn(org.dogtagpki.pki:pki-server) = 11.6.0.SNAPSHOT, but none of the providers can be installed
• cannot install the best update candidate for package idm-pki-acme-11.5.0-2.el9_4.noarch
  (try to add '-allowerasing' to command line to replace conflicting packages or 'skip-broken' to skip uninstallable packages or '-nobest' to use not only best candidate packages)