Update dependency flutter_bloc_pattern to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
flutter_bloc_pattern (source)	dependencies	major	^2.0.0 -> ^3.0.0

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Release Notes

hoc081098/flutter_bloc_pattern (flutter_bloc_pattern)

v3.0.0

Compare Source

• Update dependencies:
  • rxdart_ext to ^0.3.0.
• Change Flutter constraint to '>=3.10.0' (requires Flutter 3.10 or later).
• Change Dart SDK constraint to '>=3.0.0 <4.0.0' (requires Dart 3.0 or later).

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Configuration

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: pubspec.lock

Command failed: flutter pub upgrade flutter_bloc_pattern
The current Dart SDK version is 3.7.0.

Because sqlite_bloc_rxdart depends on build_runner >=0.1.1 <2.0.0 which doesn't support null safety, version solving failed.

The lower bound of "sdk: '>=1.9.1 <3.0.0'" must be 2.12.0 or higher to enable null safety.
For details, see https://dart.dev/null-safety
Failed to update packages.