TEST: Check property query support of apps/pkey

TEST: Check property query support of apps/pkey

Property query support works correctly for apps/pkey, but there does not
seem to be a test for it yet, so add one.

See also 30b2c3592e8511b60d44f93eb657a1ecb3662c08, which previously
fixed a similar problem in dsaparam and gendsa. See also the initial
report in https://bugzilla.redhat.com/show_bug.cgi?id=2094956.

Signed-off-by: Clemens Lang <cllang@redhat.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/18717)