feat(monitor): add an events channel to avoid event loss caused by delayed docker event processing

[slashexx]

Purpose of PR?:

Fixes #1929

Does this PR introduce a breaking change?
No

If the changes in this PR are manually verified, list down the scenarios covered::

Additional information for reviewer? :
This PR addresses the Docker event queue buffer issue by adding processing logic in dockerHandler.go. It is part of improving KubeArmor's ability to handle high-frequency Docker events efficiently.

Checklist:

• Bug fix. Fixes Add buffer queue processing when a large number of Docker information is updated #1929
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• PR Title follows the convention of <type>(<scope>): <subject>
• Commit has unit tests
• Commit has integration tests