sci-biology/augustus: add lpsolve subslot dep

Bug: https://bugs.gentoo.org/614866
Signed-off-by: Sam James <sam@gentoo.org>

sci-biology/augustus/augustus-3.4.0-r3.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -26,7 +26,7 @@ RDEPEND="
 	sci-libs/gsl:=
 	sci-libs/htslib:=
 	sci-libs/suitesparse
-	sci-mathematics/lpsolve
+	sci-mathematics/lpsolve:=
 	sys-libs/zlib
 "
 DEPEND="${RDEPEND}"