Log Message:
net/netatalk4 - Update to v4.2.3

Changelog:

GitHub CI: Build cmark from source on Solaris by @rdmark in #2141
testsuite: Consistently use STATIC macro on test funcions by @rdmark in #2142
libatalk: MySQL query error log level is dropped to debug by @rdmark in #2143
Move macusers script into shell_utils dir by @rdmark in #2145
Cross platform friendly docs for CNID dir and Spotlight by @rdmark in #2146
initscripts: Improvements to the OpenRC netatalk init script
	by @rdmark in #2148
Consistently return exit code 0 after showing version info by @rdmark in #2151
netatalk: fix iconv dependency build issue by @APCCV in #2140
Ensure that optind is reset on each call to afp_options_parse_cmdline()
	by @NJRoadfan in #2153
Read the appletalk option only when netatalk built with DDP
	by @rdmark in #2149