fix: Bootstrap genesis accounts

[sergerad]

v0.14.7 currently errors out when genesis.toml specifies the full list of accounts in genesis.toml:

version = 1
timestamp = 1776640574

[fee_parameters]
verification_base_fee = 0

[[account]]
path = "bridge.mac"

[[account]]
path = "bridge_admin.mac"

[[account]]
path = "ger_manager.mac"

$ miden-node validator bootstrap --genesis-block-directory /opt/miden-validator/ --accounts-directory /opt/miden-validator/ --data-directory /opt/miden-validator/ --genesis-config-f
ile ./genesis.toml 
Error: failed to build the genesis block

Caused by:
    an account with a seed cannot be converted into a delta since it represents an unregistered account

[Mirko-von-Leipzig]

I think this is intentionally done this way. From genesis/readme.md#output:

The tool generates the following files in the output directory:

• bridge_admin.mac - Bridge admin wallet (nonce=0, deployed later via transaction)
• ger_manager.mac - GER manager wallet (nonce=0, deployed later via transaction)
• bridge.mac - AggLayer bridge account (nonce=1, included in genesis block)
• genesis.toml - Genesis configuration referencing only bridge.mac

I'll wait for @mmagician to confirm; but I believe we therefore don't need this fix i.e. working as intended.

[Mirko-von-Leipzig]

Closing as @mmagician confirmed offline