Part of [Create bridge channel in go-nitro](https://www.notion.so/Create-bridge-channel-in-go-nitro-22ce80a0d8ae4edb80020a8f250ea270) - Use variable for chain ID instead of hardcoding Co-authored-by: Neeraj <neeraj.rtly@gmail.com> Reviewed-on: #9
Part of [Create bridge channel in go-nitro](https://www.notion.so/Create-bridge-channel-in-go-nitro-22ce80a0d8ae4edb80020a8f250ea270) Co-authored-by: Neeraj <neeraj.rtly@gmail.com> Co-authored-by: IshaVenikar <ishavenikar7@gmail.com> Reviewed-on: #5