DAOS-19088 ci: pin mercury-devel to the latest 15.5 version (#18463)

The latest available leap 15.5 mercury-devel RPM has version 2.4.1-2.
This version must be used for proper DAOS build on leap 15.5.

Signed-off-by: Tomasz Gromadzki <tomasz.gromadzki@hpe.com>

Author: grom72

utils/rpms/daos.spec

@@ -11,6 +11,7 @@
 %global daos_build_args client test
 %endif
 %global mercury_version   2.4.1
+%global mercury_version_max   2.4.1-2
 %global libfabric_version 1.20
 %global argobots_version 1.2-3
 %global __python %{__python3}
@@ -37,6 +38,7 @@ BuildRequires: scons >= 2.4
 %endif
 BuildRequires: libfabric-devel >= %{libfabric_version}
 BuildRequires: mercury-devel >= %{mercury_version}
+BuildRequires: mercury-devel <= %{mercury_version_max}
 BuildRequires: gcc-c++
 %if (0%{?rhel} >= 8)
 %global openmpi openmpi
@@ -135,6 +137,7 @@ Requires: openssl
 Requires: mercury-libfabric >= %{mercury_version}
 
 
+
 %description
 The Distributed Asynchronous Object Storage (DAOS) is an open-source
 software-defined object store designed from the ground up for