Fixes <https://issues.guix.gnu.org/54760>.
* guix/import/hackage.scm (filter-dependencies): Support multiple
OWN-NAMES.
(hackage-module->sexp): Filter OWN-NAMES from HACKAGE-DEPENDENCIES and
HACKAGE-NATIVE-DEPENDENCIES.
* tests/hackage.scm (test-cabal-internal-library-ignored): New variable.
("hackage->guix-package test internal libraries are ignored"): New testcase.