Pre-commit build

[Shreepadma Venugopalan]

I created a new JIRA[1] to create a pre-commit build much like that of
other ecosystem projects.

[1] - SENTRY-61 - Create a pre-commit build for
Sentry<https://issues.apache.org/jira/browse/SENTRY-61>

Thoughts?

Thanks.
Shreepadma