Upgrade C-icap-modules to 0.5.2

c-icap-modules-0.5.2 changes

• virus_scan: Add the counter AV_SCAN_FAILURES to count scan engine failures
• virus_scan: fix error handling when PassOnError is set to on
• virus_scan: Report correctly the X-Violations-Found header and the virus_scan:viruses-list attribute.
• url_check: Fix misplaced space in added headers using the HttpHeaderReplace and HttpHeaderAdd* rules

PR: 231378
Submitted by: Franco Fichtner <franco@opnsense.org>