Add filtering capabilities for consumed messages

[vuon9]

Introduce filtering options for consumed messages based on keywords and regular expressions. Users can specify the filter mode to control whether to match against keys, messages, or both. This enhancement improves message consumption flexibility and usability.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Documentation

• the change is mentioned in the ## [Unreleased] section of CHANGELOG.md
• the configuration yaml was changed and the example config in README.adoc was updated
• a usage example was added to README.adoc
• tests for the changes have been implemented (see: Testing your changes)

Built with ❤️ and 🤖 Copilot