Bug 22522: Add support for current Mojolicious and related packages

Bug 22522: Add support for current Mojolicious and related packages

This patch allows tests to succeed with the following versions:
JSON::Validator 3.18
Mojolicious 8.32
Mojolicious::Plugin::OpenAPI 2.21

Also Mojolicious::Plugin::OpenAPI version 1.17 and later 1.x versions now work.

Calling valid_input in under() would cause ' Use of uninitialized value $_[2] ' in more recent OpenAPI plugins, so that was changed too. As far as I can see this does not affect authorization.

Signed-off-by: Mason James <mason@kohaaloha.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>