Update to stable APIs

[thepra]

Describe the problem

As in this issue I figured that cinny is using and old endpoint:
_matrix/client/unstable/org.matrix.msc2432/rooms/:room_id/aliases

meanwhile the stable endpoints are:
/_matrix/client/r0/rooms/{roomId}/aliases or /_matrix/client/v3/rooms/{roomId}/aliases

Describe the solution you'd like

Could Cinny update this endpoints? (which make newer matrix server like dendrite to fail the calls given that it doesn't have no more that deprecated endpoint)

Alternatives considered

No response

Additional context

No response

[ajbura]

@thepra This needs to be done in matrix-js-sdk as we are using that.

[aaronraimist]

matrix-org/matrix-js-sdk#2402

[kfiven]

@aaronraimist @thepra #624 we also use the stable function but this is still in the dev branch and hasn't been released.

[kfiven]

plus it's not just one unstable API call in js-sdk, there are more element-hq/element-web#22839

[thepra]

damn!

[kfiven]

The specific case of room alias API call has now stable API and landed in Cinny 2.1.0, others are not cinny issue but js-sdk's.