Use new wallet-proxy endpoint and prepare release of 1.6.3

[limemloh]

Purpose

• Use new wallet proxy endpoint with company ID providers
• Prepare release of 1.6.3

[soerenbf]

LGTM, although I find it a little weird that the wallet proxy endpoint is a new version of an existing endpoint instead of a new v0 endpoint.. It puts us in a spot where it's hard to introduce breaking changes to the format returned while excluding company ID providers. Is this not a relevant consideration?

[limemloh]

LGTM, although I find it a little weird that the wallet proxy endpoint is a new version of an existing endpoint instead of a new v0 endpoint.. It puts us in a spot where it's hard to introduce breaking changes to the format returned while excluding company ID providers. Is this not a relevant consideration?

This was discussed offline, but to summarize: We still have the old endpoint available for other wallets and older versions of the browser wallets, currently we can't really do any breaking changes for this endpoint anyway.