Fix `XcmPaymentApi::query_weight_to_asset_fee` version conversion (#6459)

The `query_weight_to_asset_fee` function was trying to convert versions
by using `try_as`, this function [doesn't convert from a versioned to a
concrete
type](https://github.com/paritytech/polkadot-sdk/blob/0156ca8f/polkadot/xcm/src/lib.rs#L131).
This would cause all calls with a lower version to fail.

The correct function to use is the good old
[try_into](https://github.com/paritytech/polkadot-sdk/blob/0156ca8f

/polkadot/xcm/src/lib.rs#L184).
Now those calls work :)

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Co-authored-by: command-bot <>
Co-authored-by: Branislav Kontur <bkontur@gmail.com>
Co-authored-by: GitHub Action <action@github.com>