6.0.x: backport RFB fixes - v3 #7072

Job	Run time
Prepare cbindgen	1m 11s
Prepare dependencies	1m 16s
AlmaLinux 8	16m 25s
AlmaLinux 9	15m 13s
Fedora 38 (gcc, debug, asan, wshadow, rust-strict)	7m 42s
Fedora 38 (clang, debug, asan, wshadow, rust-strict, systemd)	7m 40s
Fedora 36 (debug, clang, asan, wshadow, rust-strict)	12m 0s
Fedora 37 (clang, debug, asan, wshadow, rust-strict, systemd)	7m 38s
Fedora 37 (gcc, debug, asan, wshadow, rust-strict)	7m 55s
Ubuntu 20.04 (no nss, no nspr)	7m 58s
Ubuntu 20.04 (-DNDEBUG)	8m 59s
Ubuntu 22.04 (Cocci)	47m 11s
Ubuntu 22.04 (Debug Validation)	6m 52s
Debian 10	7m 38s
MacOS Latest	22m 16s
Ubuntu 22.04 (Fuzz)	6m 11s
Windows MSYS2 MINGW64 (libpcap)	34m 47s
Windows MSYS2 MINGW64 (NPcap)	26m 20s
Windows MSYS2 MINGW64 (WinDivert)	19m 26s
Ubuntu 20.04 (unsupported rust)	1m 13s
Ubuntu 20.04 (MSRV)	6m 14s
CentOS 7	12m 26s
	4h 44m 31s

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