Increment version to 5.4.8.5 for development. #2200

Job	Run time
macOS 13 native [GOAL install] [GUI] [no depends]	24m 40s
Lint	54s
ARM [GOAL install] [bullseye]	12m 40s
Win32	14m 14s
Win64	32m 43s
i386 Linux [GOAL install] [focal]	12m 16s
x86_64 Linux [GOAL install] [GUI] [focal] [no depends]	16m 42s
x86_64 Linux [GOAL install] [GUI] [noble] [no depends]	13m 59s
x86_64 Linux [ASan] [LSan] [UBSan] [integer] [jammy] [no depends]	20m 25s
macOS 10.14 [GOAL deploy] [GUI] [no tests] [noble]	27m 32s
arm64 macOS 10.14 [GOAL deploy] [GUI] [no tests] [noble]	26m 52s
	3h 22m 57s

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