Bugfix: remove release from provides for EPEL

For context: https://issues.redhat.com/browse/CS-1757

We originally used the CentOS Stream spec file line as reference for creating the provides line in our spec file: https://gitlab.com/redhat/centos-stream/rpms/centos-stream-release/-/blob/c8s/centos-stream-release.spec?ref_type=heads#L32-33

However, this causes some issues with the release field in CentOS Stream as noted in the above ticket. So, to fix that while we also (hopefully) change the default release value above, we're simply dropping the release value to match what EPEL is looking for: https://src.fedoraproject.org/rpms/epel-release/blob/epel9/f/epel-release.spec#_37