Update URL of Google Maps

[mjk912]

https://github.com/mjk912/LocusMapTweak/blob/master/providers.xml#L5

[auricgoldfinger]

I tried this one today but failed. Not only Google forbids direct tile access, they also make it very hard for applications to automatically generate the correct url these days :-)

.. which is at the moment not such a big problem because the latest version of the tiles are still being downloaded (tested with route and hybrid version)

[mjk912]

Thanks for investigating.