Remove coupling from merge plugin and aura

[smartprogrammer93]

Changes

• decouple merge plugin from aura consensus.

Types of changes

What types of changes does your code introduce?

• Bugfix (a non-breaking change that fixes an issue)
• New feature (a non-breaking change that adds functionality)
• Breaking change (a change that causes existing functionality not to work as expected)
• Optimization
• Refactoring
• Documentation update
• Build-related changes
• Other: Description

Testing

Requires testing

• Yes
• No

If yes, did you write tests?

• Yes
• No

Notes on testing

Optional. Remove if not applicable.

Documentation

Requires documentation update

• Yes
• No

If yes, link the PR to the docs update or the issue with the details labeled docs. Remove if not applicable.

Requires explanation in Release Notes

• Yes
• No

[MarekM25]

Did we test it with gnosis node and mainnet node?

[smartprogrammer93]

@MarekM25 tested on both Chiado and mainnet here:

• mainnet
• chiado