Bump MSRV to 1.85.0 and rust edition to 2024 #23215

Job	Run time
ext-test	6m 22s
linting	1m 4s
fuzz_sanity	13m 37s
benchmark	15m 41s
rustfmt	17s
tor-connect	7m 15s
check_release	3m 3s
build-bindings / build (self-hosted, 1.85.0)	11m 51s
fuzz	40m 49s
build-sync / build (self-hosted, 1.85.0)	10m 43s
build-cfg-flags / build (self-hosted, 1.85.0)	17m 1s
check_docs	7m 8s
build-workspace / build (self-hosted, 1.85.0)	11m 31s
build-nostd / build (self-hosted, 1.85.0)	13m 2s
build-features / build (self-hosted, 1.85.0)	16m 30s
coverage	21m 21s
notify-failure	-1s
	3h 17m 14s

Provide feedback