Meltano

<https://github.com/meltano/hub/issues/1191|#1191 ci: check plugin can be installed by its `pip_url` in PR checks>
Issue created by <https://github.com/ReubenFrankel|ReubenFrankel>
From <https://github.com/meltano/hub/pull/1189|#1189>:

&gt; In the future, it would be nice to have a CI check here that attempts to pip install from the supplied `pip_url` to catch potential `meltano install` issues.
<https://github.com/meltano/hub|meltano/hub>

<https://github.com/meltano/hub/issues/1191|#1191 ci: check plugin can be installed by its `pip_url` in PR checks>
Issue closed as completed by <https://github.com/ReubenFrankel|ReubenFrankel>
<https://github.com/meltano/hub|meltano/hub>