Bump minimum Flutter version required to `3.10.6`

[TahaTesser]

We currently target 3.7.2. It's about time we bump to 3.10.6 (it's the top most 3.10 release) for the next major wolt_modal_sheet release.

cc: @ulusoyca I can land this.

[ulusoyca]

Please do 🙏 We can use Media Query methods.