ExtendedRegistryTypes not exported by bc-ur-registry-cosmos

[blake-regalia]

This const is not being exported by @keystonehq/bc-ur-registry-cosmos/index.ts.

https://github.com/KeystoneHQ/keystone-airgaped-base/blob/5456ac880f0ada8b8717dec72ebee94d92daa4b6/packages/ur-registry-cosmos/src/index.ts#L2