Fix regressions

[ghost]

Description

Previous commits included some regression regarding:

• node election
• new transaction address design (faucet configuration)
• beacon chain slot transaction attestations appending

Fixes #254
Fixes #255

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• Running multiple nodes should not raise errors regarding replication attestation
• Running multiple nodes should not raise errors in self repair due to invalid node election
• Send a transaction when new authorized nodes should not raise errors due to node election
• Running multiple node with docker-compose (same entry time)
• Running multiple node with using: iex (delayed entry time)
• Running non-regression tool: docker-compose up validate

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[blackode]

• Read PR description

• Read AC

• Pulled branch, manually tested, verified AC are met

• Reviewed the code

• Running multiple nodes should not raise errors regarding replication attestation

• Running multiple nodes should not raise errors in self-repair due to invalid node election

• Send a transaction when new authorized nodes should not raise errors due to node election

• Running multiple node with docker-compose (same entry time)

• Running multiple node with using: iex (delayed entry time)

• Running non-regression tool: docker-compose up validate