fix: mockWithLDConsumer should not return null

[debaraj-barua]

Requirements

• [ ] I have added test coverage for new or changed functionality
• [x] I have followed the repository's pull request submission guidelines
• [ ] I have validated my changes against all supported platform versions

Related issues

• Fixes #28

Describe the solution you've provided

Currently the mock for WithLDConsumer returns null which leads to errors such as below:

Describe alternatives you've considered

Provide a clear and concise description of any alternative solutions or features you've considered.

Additional context

Add any other context about the pull request here.

[jacobScottAllen]

Hello @debaraj-barua ,thank you for your contribution! Just letting you know we see this (as well as the issue you created that this fixes) and will be looking into it soon. This seems like a simple change so it shouldn't take too long.

[yusinto]

This has been fixed in v1.0.3.