chore(deps): update Android SDK to v6.3.1

[github-actions]

Bumps flutter/scripts/update-android.sh from 6.3.0 to 6.3.1.

Auto-generated by a dependency updater.

Changelog

6.3.1

Fixes

• Prevent NPE by checking SentryTracer.timer for null again inside synchronized (#2200)
• Weakly reference Activity for transaction finished callback (#2203)
• attach-screenshot set on Manual init. didn't work (#2186)
• Remove extra space from spring.factories causing issues in old versions of Spring Boot (#2181)

Features

• Bump Native SDK to v0.4.18 (#2154)
  • changelog
  • diff
• Bump Gradle to v7.5.0 (#2174, #2191)
  • changelog
  • diff

[codecov-commenter]

Codecov Report

Merging #976 (df07a6a) into main (56d2711) will increase coverage by 1.59%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #976      +/-   ##
==========================================
+ Coverage   89.55%   91.14%   +1.59%     
==========================================
  Files         106        9      -97     
  Lines        3322      192    -3130     
==========================================
- Hits         2975      175    -2800     
+ Misses        347       17     -330     

Impacted Files	Coverage Δ
dart/lib/src/protocol/span_id.dart
...lib/src/invalid_sentry_trace_header_exception.dart
dart/lib/src/protocol/sentry_span.dart
dart/lib/src/sentry_span_context.dart
...lib/src/client_reports/client_report_recorder.dart
dart/lib/src/protocol/sentry_device.dart
dart/lib/src/platform/_io_platform.dart
...ib/src/sentry_attachment/io_sentry_attachment.dart
dart/lib/src/sentry_envelope.dart
dart/lib/src/protocol/dsn.dart
... and 87 more

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