Add nixpkgs-2411 and update other nixpkgs pins #2895

Job	Run time
nix-build	16m 46s
cabal	1m 12s
unit-tests	4s
runghc	1m 41s
cabal-doExactConfig	1m 16s
shellFor-hoogle	6s
maintainer-scripts	9s
multi-target	1m 22s
shellFor-multiple-package	7s
shellFor-not-depends	6s
shellFor-single-package	7s
tests-benchmarks	32s
build-extra-hackages	8s
check-materialization-concurrency	19s
check-path-support	11s
closure-size	3s
docs	25s
haskell-nix-roots-do-not-require-IFDs	1h 5m 48s
hix	1h 3m 34s
hydra-ifdLevel-0-and-1	3m 47s
hydra-ifdLevel-2	6m 40s
hydra-ifdLevel-3	30m 9s
plan-extra-hackages	8s
update-docs	8s
hix-cabal	3m 46s
hydra-without-remote-builders-ghc9101	2m 33s
hydra-without-remote-builders-ghc966	2m 5s
nix-tools	11s
	3h 23m 23s

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