Is your feature request related to a problem? Please describe.
I'm baffled as to why this is not a customizable flag in the PushSecret.spec to set the parameter type for AWS SSM Parameter Store.
This is the offending line:

This should obviously be something the client should be able to customize, with the default of String if you really want it. But, nevertheless, it shouldn't be a hard-coded value.

Describe the solution you'd like
I'd like to be able to modify the value to SecureString please. On the same topic, you should also be able to set the Parameter Tier of either Standard or Advanced. reference

Describe alternatives you've considered
The alternative is to fork the repo and modify it to have the default hard-coded value of SecureString (cause I'm not a Go guy by any means 😬).

Additional context
nada