Revert "Allow setting python::version in hiera to Integer"

[smortex]

Reverts #733 following discussions in #733 (comment)

[tj-cisco]

Why revert this? It works and doesn't break anything, having graceful input handling is a good improvement!

[smortex]

Why revert this?

Consistency and correctness? "1.0.0" and 1 and accepted, but 1.0 is not. This is inconsistent. We can add a Float so that 1.0 is accepted too, but then there is one more "incorrect" ways to pass a version number because a version number is indeed a String.

Hence the request to revert this and only accept a version number as a String.

[traylenator]

Versions are strings.

If you want to really want to accept an integer in hiera you can possibly add:

lookup_options:
  python::version:
    convert_to: "String"

to your own hiera.

but just quote the"1".