Test a new goodie

[kirkins]

I submitted a new Goodie for text to voice and I found a small issue in Duckpan during the development process.

If you want to query the new goodie there is no problem, though you do get a warning like this:

[NOTICE] No metadata was found for these Instant Answers:

But if I try to test the new goodie:

[FATAL]  Could not find an Instant Answer with name 'TextToSpeech'

As a workaround I used a full duckpan test, which ended up consuming a lot of time while working on tests.

[mintsoft]

As a smaller workaround you can use prove -Ilib t/TextToSpeech.t from the root of the repository, that should work. It looks like this got missed in https://github.com/duckduckgo/p5-app-duckpan/pull/383