Resolve issues with following protocols 1. `bridge.yaml`

[8ball030]

1. bridge.yaml

   E               ValueError: Protocol scaffolding failed: Error: Protocol is NOT generated. The following error happened while generating the protocol:
   E               Error while parsing the protocol specification: Content 'initialisation_tx_hash' with type 'pt:optional[pt:str]' under performative 'bridge' is already defined under performative 'initialise_claim' with a different type ('pt:str').

2. cross_chain_arbitrage.yaml

   E           aea.configurations.base.ProtocolSpecificationParseError: Extra protobuf code snippet provided. Type 'ct:ArbitrageResultCode' is not used anywhere in your protocol definition.

3. default
   Already present in dummy_agent_tim since you're using eightballer/base as a template.
4. order_book
   has issue where protocol_specification_id does not match the name of the spec file (here, also noted in PR #634 )

Originally posted by @Karrenbelt in 8ball030/auto_dev#618 (comment)