Update nixpkgs pins #2410

Job	Run time
cabal	34s
cabal-doExactConfig	28s
multi-target	1m 1s
nix-build	1m 28s
runghc	20s
shellFor-multiple-package	37s
shellFor-single-package	51s
tests-benchmarks	10s
unit-tests	8s
build-extra-hackages	8s
docs	51s
hix	1h 6m 18s
hydra-ifdLevel-0-and-1	51s
hydra-ifdLevel-2	9s
hydra-ifdLevel-3-and-ghc-8-10	13s
maintainer-scripts	11s
shellFor-hoogle	11s
shellFor-not-depends	16s
plan-extra-hackages	10s
check-materialization-concurrency	20s
check-path-support	11s
closure-size	8s
haskell-nix-roots-do-not-require-IFDs	7s
hix-cabal	22s
hydra-ifdLevel-3-and-ghc-9-2	10s
hydra-ifdLevel-3-and-not-ghc-8-10-or-9-2	10s
hydra-without-remote-builders	7s
update-docs	9s
nix-tools	16s
	1h 16m 55s

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