RLS "Last modified" field is not updated

[geido]

Bug description

Updating a RLS won't update the "Last modified" time.

How to reproduce the bug

1. Visit Row Level Security under Settings
2. Create a RLS rule
3. Wait a few minutes and observe the Last modified time
4. Change the rule

Expected results

The Last modified time should update

Actual results

The Last modified time hasn't updated

Screenshots/recordings

Superset version

master / latest-dev

Python version

3.9

Node version

18 or greater

Browser

Chrome

Additional context

No response

Checklist

• I have searched Superset docs and Slack and didn't find a solution to my problem.
• I have searched the GitHub issue tracker and didn't find a similar bug report.
• I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.

[geido]

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[fardin-developer]

I would love to work on this

[LevisNgigi]

I can take this as well.