#574 Update Google Maps SDK dependency version range

[Brennanium]

Trying to update to Maps SDK 11.0.0 give the following error:

Failed to resolve dependencies Dependencies could not be resolved because root depends on 'google-maps-ios-utils' 7.1.0.
'google-maps-ios-utils' 7.1.0 cannot be used because 'google-maps-ios-utils' 7.1.0 depends on 'ios-maps-sdk' 10.0.0..<11.0.0 and root depends on 'ios-maps-sdk' 11.0.0.

Currently google-maps-ios-utils pins the major version 10.x.x for ios-maps-sdk. Changing the pinning to 10.0.0..<12.0.0 in the Package.swift, the library appears to build and function just fine with the new 11.0.0 version of ios-maps-sdk.

Fixes #574 🦕

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