Integrate staged contract migration with the on-chain logic

[SupunS]

Issue to be solved

The contract update migration needs the contracts to be migrated as inputs (address, name, code). This is collected by the contract staging contract onflow/contract-updater#14, and could be retrieved as a csv/json.

Needs to implement a bridge these two:

• Determine the data exchange format (csv/cdc-json/etc)
• Implement the logic to read the input data from a file at the migration side.

Suggested Solution

No response

[SupunS]

Added in reading from a CSV file in onflow/flow-go#5425.
If we needed any other format in future (e.g: one file per contract), that can be a separate issue.