feat(cactus-example-tcs-huawei): use openapi ethereum connector

[outSH]

Is your feature request related to a problem? Please describe.
We are phasing out legacy cactus-plugin-ledger-connector-go-ethereum-socketio which is used by cactus-example-tcs-huawei sample app. This old connector must be replaced with new, openapi based one - cactus-plugin-ledger-connector-ethereum.

Describe the solution you'd like
Refactor sample app to use cactus-plugin-ledger-connector-ethereum (similar work to this PR - #2735).

@123wyl123 please investigate and let me know if you can do it :)

[outSH]

@123wyl123 any updates regarding updating of tcs sample app?

[123wyl123]

@outSH Sorry for replying to your message now.
I will revise the implementation of that part and submit it as soon as possible

[outSH]

@123wyl123 I'm happy to hear that! If you encounter any trouble please reach out to me :)

Another thing which would be nice to do before our V2 release is to upgrade cactus-plugin-ledger-connector-tcs-huawei-socketio you've contributed to openapi-based connector. Example of simple openapi connector to get the idea is here - #2962

Please let me know if you can do that as well

[petermetz]

@123wyl123 Plus one to what @outSH said above! I'm happy to help as well!

[outSH]

@123wyl123 Hello, do you have any questions or problems regarding this? Please note that I've also opened a separate issue for open-api migration that I've mentioned in a previous comment (which is also important since it blocks removal of socketio-server) - #3076

[petermetz]

Closing this for now because we've phased out the components in question.