BridgeHub subtree update (#2820)

* BH subtree master -> polkadot-staging by default

* Squashed 'bridges/' changes from c9dd8b9dfc..0417308a48

0417308a48 Update docs (#2242)
1a0d3b55f3 Nits for subtree (#2241)
18fca2e122 Ensure that the origin is signed for submit_parachain_heads and submit_finality_proof calls (#2239)
fab51067e7 minor doc fix (#2207)
4feb721d32 backport cumulus changes to polkadot-staging (#2167)
433741942a fix testnet argocd deploy (#2151) (#2152)
ff9eadc7dc Updated BHR/W version + codegen (#2148)

git-subtree-dir: bridges
git-subtree-split: 0417308a489096979ed3e08d0f8caafbfca6e7e9

* Fix deps