[sr-dev] [kamailio/kamailio] usrloc OPTIONS not tracing with HEP (Issue #3136)

### Description

OPTIONS keepalives sent by usrloc are not being traced with HEP/Homer

### Troubleshooting

#### Reproduction

Module setup:

modparam("siptrace", "duplicate_uri","sip:HOMERIP:9060"); modparam("siptrace", "hep_mode_on",1); modparam("siptrace", "trace_to_database",0); modparam("siptrace", "trace_flag",22); modparam("siptrace", "trace_on", 1); modparam("siptrace", "hep_version", 3); modparam("siptrace", "trace_mode", 1)

I believe the above setup should duplicate ALL packets to homer, which is working just fine, except for usrloc-generated OPTIONS.

The 200 OK from endpoints is showing up just fine, just not the initial request.