feature request: Add pg_cron extension for postgres rds

[Dev317]

Is there an existing issue for this?

• I have searched the existing issues

Feature description

Would love to have some form of cron jobs for rds since I have quite a few of materialized and procedure jobs that need to test on!

🧑‍💻 Implementation

• Maybe can enable pg_cron by default in the default parameter group!

Anything else?

No response

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