Update CONTRIBUTING.md to include recommendation to not use internal databases for production deployments.

This is from a request from P1 Cyber to update the security considerations to include not recommending internal databases for production deployment.

requested review from @andrewshoell, @chris.oconnell, @michaelmartin, and @troymobley

assigned to @andrew_vu

added kinddocs label

@andrew_vu This merge request is not marked as draft, if it is ready for review please add the label, statusreview.

added needs-labels label

approved this merge request

merged

mentioned in commit ae6e6b27