www/c-icap-modules: update to 0.5.4

Remove patch patch-services_virusscan_clamavmod.c
fixed by upstream (Bug 121: https://sourceforge.net/p/c-icap/bugs/121)

Changelog:

• Bug 121: Support for Clamav-0.102.1
• Various issues reported by clang analyzer
• Fix memory leak when clamd TCP server is used instead of unix pipes.

PR: 242795
Submitted by: Franco Fichtner <franco@opnsense.org>