Support for some non-boolean types as predicates of a conditional with Autograph

[rauletorresc]

Context: CondCallable class was assuming boolean values for its predicate, but other types can be passed as predicates as well.

Description of the Change: Convert the predicate into boolean at the constructor site.

Benefits: Predicate is in proper type.

Possible Drawbacks: Are there types that cannot be converted (correctly) to booleans?

Related GitHub Issues: https://github.com/PennyLaneAI/catalyst/issues/940

TODO:

• [x] Check the shape of the predicates
• [x] Skip conversion for anything with dtype == bool

closes #940

[sc-69070]

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 97.93%. Comparing base (70861a1) to head (dbe8230).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #944 +/- ## ======================================= Coverage 97.93% 97.93% ======================================= Files 72 72 Lines 10301 10317 +16 Branches 1172 1176 +4 ======================================= + Hits 10088 10104 +16 Misses 169 169 Partials 44 44 ```

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