Require qpid-proton 0.37.0 minimum

We'll need to drop the dnf epel exclude since it previously excluded qpid-proton.
Therefore, users will either need to run this manually or we'll provide a script
that will do it:

```
dnf config-manager --setopt=epel.exclude= --save
```

See the discussion in ManageIQ/manageiq-appliance-build#559 (comment)

rpm_spec/subpackages/manageiq-gemset

@@ -30,7 +30,7 @@ Requires: python3-pylxca
 Requires: cyrus-sasl
 Requires: cyrus-sasl-plain
 Requires: python3-vspk
-Requires: qpid-proton-c
+Requires: qpid-proton-c >=  0.37.0
 
 # For Appliance Console
 Requires: libsodium-devel