Upgrade to Polkadot SDK

[claravanstaden]

Polkadot SDK companion: Snowfork/polkadot-sdk#1

• Add polkadot-sdk as submodule
• Remove cumuls as submodule
• Update snowbridge pallet dependencies
• Make sure tests and Github Action workflows pass
• Update snowbridge scripts to use polkadot-sdk, not cumulus
• Add snowbridge pallets to bridge hub
• Double check dependency versions
• Port any config from snowfork/cumulus to snowfork/polkadot-sdk
• E2E scripts work
• Smoke tests pass
• Regenerate benchmarks

[codecov]

Codecov Report

Patch coverage: 80.00% and project coverage change: +1.37% 🎉

Comparison is base (6b08d30) 75.23% compared to head (dbc1acc) 76.61%.
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #959      +/-   ##
==========================================
+ Coverage   75.23%   76.61%   +1.37%     
==========================================
  Files          41       41              
  Lines        1813     1924     +111     
  Branches       75       75              
==========================================
+ Hits         1364     1474     +110     
- Misses        429      430       +1     
  Partials       20       20              

Flag	Coverage Δ
rust	77.37% <80.00%> (+1.63%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
parachain/pallets/control/src/lib.rs	61.36% <ø> (+0.68%)	⬆️
...achain/pallets/ethereum-beacon-client/src/impls.rs	56.81% <ø> (ø)
...arachain/pallets/ethereum-beacon-client/src/lib.rs	94.96% <ø> (-0.05%)	⬇️
parachain/primitives/core/src/outbound.rs	17.18% <ø> (ø)
parachain/primitives/router/src/outbound/mod.rs	87.96% <ø> (ø)
parachain/pallets/inbound-queue/src/lib.rs	65.11% <50.00%> (-3.18%)	⬇️
...rachain/pallets/ethereum-beacon-client/src/mock.rs	100.00% <100.00%> (ø)
parachain/pallets/outbound-queue/src/lib.rs	90.41% <100.00%> (ø)
parachain/primitives/router/src/inbound/mod.rs	58.51% <100.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[claravanstaden]

Closing in favour of #965.