Remove manual geo handling in iOS after sentry-cocoa adds geo support in initWithDictionary: #6266

Description

Once getsentry/sentry-cocoa#8026 is released, SentryUser.initWithDictionary: will natively handle the "geo" key by deserializing it into SentryGeo. This means we can remove the manual geo handling in RNSentry.mm.

Changes needed

In packages/core/ios/RNSentry.mm (userFrom:otherUserKeys:):

• Remove [filteredKeys removeObjectForKey:@"geo"] and the filteredKeys mutable copy — pass userKeys directly to initWithDictionary:
• Remove the entire manual geo block (~20 lines: SentryGeo alloc, manual city/countryCode/region parsing, setGeo:)
• Remove #import <Sentry/SentryGeo.h>

The method should simplify to:

SentryUser *userInstance = [[SentryUser alloc] initWithDictionary:userKeys];
if ([userDataKeys isKindOfClass:NSDictionary.class]) {
    [userInstance setData:userDataKeys];
}
return userInstance;

Prerequisite

• Bump sentry-cocoa dependency to the version that includes fix: Support geo in SentryGeo initWithDictionary sentry-cocoa#8026

Related

• PR refactor(android,ios): Use native SDK deserializers for User and Breadcrumb #6261 (use native SDK deserializers)
• fix: Support geo in SentryGeo initWithDictionary sentry-cocoa#8026