5.0.0

• Sound null safety
• Fix: event.origin and event.environment tags have wrong value for iOS (#365) and (#369)
• Fix: Fix deprecated registrar.messenger call in SentryFlutterWeb (#364)
• Fix: Enable breadcrumb recording mechanism based on platform (#366)
• Feat: Option to enable Sending default PII (#360)
• Bump: sentry-cocoa to v6.2.1 (#360)
• Feat: Migration from package_info to package_info_plus plugin (#370)
• Fix: Set SentryOptions.debug in sentry (#376)
• Fix: Read all environment variables in sentry (#375)

Breaking Changes:

• Return type of Sentry.close() changed from void to Future<void> and Integration.close() changed from void to FutureOr<void> (#395)
• Remove deprecated member enableLifecycleBreadcrumbs. Use enableAppLifecycleBreadcrumbs instead. (#366)
• Full migration docs https://docs.sentry.io/platforms/dart/migration/ and https://docs.sentry.io/platforms/flutter/migration/