Fix my.cnf dependency

Installation path macros are not allowed in file dependencies.
Starting with F40, these break flatpak builds entirely because
dnf5 only recognizes file deps in /etc, /usr/bin, and /usr/sbin,
not /app/etc.  At this point, mariadb-connector-c-config is the
sole provider of my.cnf.

https://docs.fedoraproject.org/en-US/packaging-guidelines/#_file_and_directory_dependencies

mariadb10.11.spec

@@ -136,7 +136,7 @@
 
 Name:             %{majorname}%{majorversion}
 Version:          %{package_version}
-Release:          4%{?with_debug:.debug}%{?dist}
+Release:          5%{?with_debug:.debug}%{?dist}
 Epoch:            3
 
 Summary:          A very fast and robust SQL database server
@@ -373,7 +373,11 @@ package itself.
 %package          -n %{pkgname}-common
 Summary:          The shared files required by server and client
 BuildArch:        noarch
-Requires:         %{_sysconfdir}/my.cnf
+%if 0%{?flatpak}
+Requires:         mariadb-connector-c-config
+%else
+Requires:         /etc/my.cnf
+%endif
 
 # Only conflicts, provides would add %%{_isa} provides for noarch,
 # which is not wanted
@@ -1709,6 +1713,9 @@ fi
 %endif
 
 %changelog
+* Tue Apr 09 2024 Yaakov Selkowitz <yselkowi@redhat.com> - 3:10.11.6-5
+- Fix my.cnf dependency
+
 * Mon Jun 24 2024 Troy Dawson <tdawson@redhat.com> - 3:10.11.6-4
 - Bump release for June 2024 mass rebuild