Upgrade rust toolchain to 2023-09-07 (#2743) #5311

Job	Run time
benchcomp-tests	7m 8s
bookrunner	29m 48s
perf	40m 51s
regression (macos-11)	43m 6s
regression (ubuntu-20.04)	31m 25s
regression (ubuntu-22.04)	32m 6s
releasebundle-macos (macos-11)	10m 8s
releasebundle-ubuntu	37m 49s
write-json-symtab-regression	22m 53s
	4h 15m 14s

Provide feedback