Use 2 external EVM chains for testing external chain message passing

[lumtis]

Describe the Issue Right now the test use the same local evm chain which is not representation of live environment and don't allow running the test in a live network correctly.

Solution Either:

• Hardcoded a second local EVM chain in zetae2e config to allow some tests using two EVM chains
• Make the config more flexible and allow a generic list of chains the tests can use, EVM/Bitcoin/anything else, would be more complex to implement but more future proof