Deprecated API usage updates

[mdanylov-sigma]

#956

Summary

• Updated location handling to respect coarse vs fine permissions:

  • GPS provider is used only with ACCESS_FINE_LOCATION.
  • Network provider is used with coarse or fine location permission.

• Tightened network connectivity detection on API 23+:

  • Requires NET_CAPABILITY_VALIDATED in addition to NET_CAPABILITY_INTERNET.
  • An active network the system has not validated (e.g. behind a captive portal) now reports OFFLINE, so Requester fails the load with "No internet connection detected" instead of sending a bid request.

• Added unit tests for coarse-only location permission and for an unvalidated network.

Relation to #992 and #993

This PR originally also migrated network detection to NetworkCapabilities (API 23+) and screen size detection to WindowMetrics (API 30+). Those changes landed on master separately in #992 and #993, so after rebasing:

• Screen size detection is not changed by this PR; the Read screen size from WindowMetrics on API 30+ #993 implementation is kept as is.
• Network detection keeps the Detect connection type through NetworkCapabilities on API 23+ #992 implementation, with only the NET_CAPABILITY_VALIDATED requirement added on top.

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