Add nixpkgs-2505 #3150

Job	Run time
cabal	1m 8s
cabal-doExactConfig	59s
nix-build	3m 27s
runghc	11s
unit-tests	6s
build-extra-hackages	20s
docs	1m 38s
hix	1m 8s
maintainer-scripts	6s
multi-target	44s
plan-extra-hackages	11s
shellFor-hoogle	46s
shellFor-multiple-package	17s
shellFor-not-depends	33s
shellFor-single-package	23s
tests-benchmarks	10s
check-materialization-concurrency	22s
check-path-support	23s
closure-size	6s
haskell-nix-roots-do-not-require-IFDs	29s
hydra-ifdLevel-0-and-1	5m 14s
hix-cabal	21s
hydra-ifdLevel-2	10m 9s
hydra-ifdLevel-3	30m 16s
hydra-without-remote-builders-ghc9102	3m 20s
hydra-without-remote-builders-ghc967	4m 54s
nix-tools	17s
update-docs	7s
	1h 8m 5s

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