PXP-4319 Feat/cert audit log

[mfshao]

This PR is a part of https://ctds-planx.atlassian.net/browse/PXP-4319

Get a trigger function for certificate table, to record when a user has submitted a ToU/PP cert

This PR denpends on userdatamodel PR uc-cdis/userdatamodel#67

Improvements

• New trigger function for certificate table, to record when a user has submitted a ToU/PP cert

Dependency updates

• Bump userdatamodel to 2.3.0

[github-actions]

The style in this PR agrees with black. ✔️

This formatting comment was generated automatically by a script in uc-cdis/wool.

[coveralls]

Pull Request Test Coverage Report for Build 8197

• 3 of 3 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.01%) to 69.456%

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Totals
Change from base Build 8188:	0.01%
Covered Lines:	5096
Relevant Lines:	7337

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💛 - Coveralls

[lgtm-com]

This pull request introduces 15 alerts when merging c09b013 into c7562d1 - view on LGTM.com

new alerts:

• 10 for Missing call to __init__ during object initialization
• 4 for Module is imported with 'import' and 'import from'
• 1 for Flask app is run in debug mode

[vpsx]

also, do we know what the resources_granted and message columns are on the application table? These triggers won't record changes to those

[lgtm-com]

This pull request fixes 15 alerts when merging 9ef01af into b3927b0 - view on LGTM.com

fixed alerts:

• 10 for Missing call to __init__ during object initialization
• 4 for Module is imported with 'import' and 'import from'
• 1 for Flask app is run in debug mode

[vpsx]

🎉 looks good now!

For posterity: In process_cert_audit(), joining on [OLD, NEW].application_id instead of [OLD, NEW].id (certificate id) because in the DELETE case, there is no more certificate row with OLD.id, so nothing would get added to the logs. The point of the JOIN is just to get to the User.id and User.username.