Fix support for pkgsStatic #3309

Job	Run time
runghc	44s
unit-tests	29s
nix-build	9m 45s
build-extra-hackages	33s
shellFor-not-depends	1m 2s
hix	1m 42s
shellFor-multiple-package	37s
shellFor-single-package	18s
shellFor-hoogle	18s
plan-extra-hackages	1m 16s
maintainer-scripts	13s
cabal	41s
docs	19m 8s
cabal-doExactConfig	34s
tests-benchmarks	20s
multi-target	20s
check-nix-tools	44s
hydra-ifdLevel-0-and-1	16m 52s
hydra-ifdLevel-3	30m 18s
hydra-ifdLevel-2	20m 18s
closure-size	10s
update-docs	11s
haskell-nix-roots-do-not-require-IFDs	1m 2s
check-materialization-concurrency	27s
hydra-without-remote-builders-ghc9102	1m 1s
check-path-support	49s
hydra-without-remote-builders-ghc967	57s
hix-cabal	13m 10s
	2h 3m 59s

Provide feedback