renaming parameters breaks the stack

[ahammond]

While it is somewhat pathological to rename a param, doing so will break the stack. What appears to happen:

• grants the custom resource permissions to manage the param on initial run
• rename the param
• try to run and custom resource tries to create the new param and
• boom: ...is not authorized to perform: ssm:PutParameter on resource...
  I'm guessing because the grant hasn't changed yet. And even if it had, we'd have the problem where the grant won't let you remove the old param.

[ahammond]

Workaround is to rename your Construct's ID as well as the param. Then CDK tears down the old one and spins up the new one.