Replace the Integritee node with our parachain

[StamfordDigital]

• Replace the Integritee node with our parachain
• Apply config changes
• Check our parachain is up-to-date

[Kailai-Wang]

Check our parachain is up-to-date

This is related to #488 , especially when upstream sgx-runtime and worker were updated to polkadot-v0.9.19 branch already.

[Kailai-Wang]

Maybe this issue could be merged with #481, at least not blocking.

To replace intergritee-node with our parachain, we need to add teerex pallet in our parachain. It can't be replaced without integration of teerex pallet. It's not strictly blocked by #481 either, because to verify if teerex pallet works, we need to use our parachain throughout the CI.

What do you think @StamfordDigital?

Alternatively, we could still keep them separated, but for #481 we are only supposed to (literally) add the pallet and make sure it doesn't break the parachain's CI/CD. In that case, the estimation for #481 can be reduced to 2 days. => I'll prefer this.

[StamfordDigital]

@Kailai-Wang as mentioned on Slack. I've reduced the estimation for #481 to 2 days.

[Kailai-Wang]

It's not strictly blocked, but ideally we would start this after the upstream version switch is done: integritee-network/worker#694