Add nixpkgs-2505 #3157

Job	Run time
unit-tests	2m 18s
nix-build	1m 45s
runghc	46s
build-extra-hackages	12s
hydra-ifdLevel-0-and-1	3m 54s
plan-extra-hackages	13s
shellFor-multiple-package	23s
maintainer-scripts	2m 18s
shellFor-not-depends	54s
docs	25m 3s
multi-target	7m 22s
shellFor-single-package	28s
hydra-ifdLevel-2	7m 39s
tests-benchmarks	15s
hix	1m 52s
shellFor-hoogle	20s
cabal	18s
cabal-doExactConfig	1m 36s
closure-size	7s
update-docs	8s
hydra-without-remote-builders-ghc967	6m 5s
hydra-ifdLevel-3	30m 18s
check-path-support	18s
haskell-nix-roots-do-not-require-IFDs	20s
hix-cabal	21s
check-materialization-concurrency	26s
hydra-without-remote-builders-ghc9102	5m 54s
nix-tools	22s
	1h 41m 55s

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