haskell: Update broadcast-chan cabal dependencies for GHC 9

dev-haskell/broadcast-chan/Manifest

+DIST broadcast-chan-0.2.1.1.tar.gz 15658 BLAKE2B 1d109ee8c3b7028465259e0a093608dc57dc4548d367a64ffcff251518e714f340f3ed75aa4aabf0c3543fee426f416fd6b0b26b4e1eaf1158356462bd6a4694 SHA512 0484a81b5bfc53ad9513f97bf0c0fe6e1b894eac19dcd1cdf7bbd67930ac21dd702b70a78460bf3518ebadfb27cf03cd0d57200ef868803dd69d26f0fd880eb7
+EBUILD broadcast-chan-0.2.1.1.ebuild 888 BLAKE2B 9ec9d00af2bf4f7b7526af512d7839c6027a84fb8174a224a649295e6a278378ecaf410e68a0007f16621c8514df7d155dacdca488b0a28ad4233f379d0e84c9 SHA512 93da01ba39efc9c8b52ac6b412283bb8da8f0f569e40edde28263b1adeb1aa93065270b811895d0643317cf1e49d6e0cce2838b6928f5d0f39f681352636dd31

dev-haskell/broadcast-chan/broadcast-chan-0.2.1.1.ebuild

+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+# ebuild generated by hackport 0.6.7.9999
+
+CABAL_FEATURES="lib profile haddock hoogle hscolour"
+inherit haskell-cabal
+
+DESCRIPTION="Closable, fair, single-wakeup channel type that avoids 0 reader space leaks"
+HOMEPAGE="https://github.com/merijn/broadcast-chan"
+SRC_URI="https://hackage.haskell.org/package/${P}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~x86"
+IUSE="sync +threaded"
+
+RDEPEND=">=dev-haskell/unliftio-core-0.1.1:=[profile?] <dev-haskell/unliftio-core-0.3:=[profile?]
+	>=dev-lang/ghc-7.10.1:=
+"
+DEPEND="${RDEPEND}
+	>=dev-haskell/cabal-1.22.2.0
+"
+
+src_prepare() {
+	default
+
+	cabal_chdeps \
+		'base >= 4.7 && < 4.15' 'base >= 4.8'
+}
+
+src_configure() {
+	haskell-cabal_src_configure \
+		$(cabal_flag sync sync) \
+		$(cabal_flag threaded threaded)
+}