bump teaclave-sdk to v1.1.6-testing #1074

[OverOrion]

This PR aims to:

• update to a newer Rust SGX SDK (1.1.6-testing branch)
• update the toolchain (2022-10-22)

Fixes #1000
Unblocks Update polkadot-v0.9.29 #1053

---

There are some clippy lint fixes I was unsure about:

1. The clippy::large_enum_variant marked enum TrustedOperationOrHash<Hash> as large (enum StreamState as well) and suggested using Boxed values instead. I did so as the variant OperationEncoded(Vec<u8>) is heap allocated as well. Is it okay or should this lint be surpressed?
2. The clippy::or_fun_call lint in fn pruned function's

self.finality_watchers.entry(block_hash).or_insert(vec![]).push(tx.clone());

line could be written as

self.finality_watchers.entry(block_hash).or_default().push(tx.clone());

However the enclave-runtime can not find this method:

error[E0599]: no method named `or_default` found for enum `linked_hash_map::Entry` in the current scope
method not found in `linked_hash_map::Entry<'_, H256, Vec<H>>`

I suspect this might be due to SGX STD env, but I haven't confirmed it (yet), which is why I opted for skipping it.

3. clippy::result_large_err
   This seems to come from one of our dependencies, which is why I added it to the allowlist.

[clangenb]

Only one minor issue, we should investigate. Otherwise, it looks very good! Thanks for fighting this war. :)

[clangenb]

Was this one also because of a big discrepancy between enum variant sizes?

[OverOrion]

Yes, I will add it to the PR description as well.

[clangenb]

I think we should investigate where this dependency comes from. I am a bit wary of using an old one.

[OverOrion]

It seems to have come from core/tls-websocket-server/Cargo.toml.
Fixed this in bd750ad.
I will check the patches section of the cargo workspace though, It should have been overridden by that. 😕

[clangenb]

Nope, patches don't work across different versions.

Thanks for fixing it! ❤️

[clangenb]

Thank you so much for the detailed pr descriptions. It is a bliss. : 🚀