Upgrade to Polkadot v0.9.29

[gruberb]

Which part of the code is the issue addressing?

• Addressing a bug
• Refactoring
• Feature
• Upgrade dependencies

Description

Upgrading to Polkadot v0.9.29

Research/based on

https://github.com/paritytech/polkadot/releases/tag/v0.9.29

How will this affect the code base

We have to upgrade all our polkadot dependencies, as well as

• orml-*
• fudge
• uniques
• chainbridge

What are forseen obstacles or hurdles to overcome?

• Upgraded Weights is the biggest change in this release which affects us: Weight v1.5: Opaque Struct paritytech/substrate#12138