Assist Customer Success with RDS required upgrades

[soutenniza]

In order to make sure we don't use extended RDS support, we want to work customer success to poke customers about upgrading their MySQL and Postgres instances to minor versions that are supported

Acceptance Criteria

• No Mysql Instances on unsupported versions
• No Postgres Instances on unsupported versions

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Security considerations

This helps avoid us spending extra monehs

Implementation sketch

• Use magic script forged by a chris