Add ghc 9.8.3, update nixpkgs and ghc HEAD #2741

Job	Run time
cabal-doExactConfig	2m 30s
maintainer-scripts	10s
multi-target	4m 52s
runghc	2m 10s
shellFor-hoogle	2m 7s
nix-build	4m 51s
shellFor-single-package	17s
shellFor-multiple-package	1m 53s
unit-tests	4s
tests-benchmarks	8s
build-extra-hackages	11s
cabal	10s
docs	2m 3s
hydra-ifdLevel-0-and-1	4m 14s
hix	2m 16s
plan-extra-hackages	6s
hydra-ifdLevel-2	7m 12s
shellFor-not-depends	13s
check-materialization-concurrency	22s
check-path-support	8s
closure-size	3s
haskell-nix-roots-do-not-require-IFDs	8s
hix-cabal	1m 16s
hydra-ifdLevel-3	30m 10s
hydra-without-remote-builders-ghc9101	2m 29s
hydra-without-remote-builders-ghc8107	2m 55s
update-docs	4s
nix-tools	12s
	1h 13m 14s

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