fix: Allow storage of `Remote<dyn Interface>`

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 8.33333% with 11 lines in your changes are missing coverage. Please review.

Project coverage is 84.91%. Comparing base (8cb52a2) to head (837d47b).

Files	Patch %	Lines
sylvia/src/types.rs	0.00%	11 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## cosmwasm_1 #367 +/- ## ============================================== - Coverage 85.25% 84.91% -0.35% ============================================== Files 37 37 Lines 2700 2711 +11 ============================================== Hits 2302 2302 - Misses 398 409 +11 ```

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