Please update the lib digest who was in the PR https://github.com/livekit/sip/pull/365

Outbound calls via CreateSIPParticipant fail against a VoipSwitch trunk:
invalid challenge "DIGEST realm=\"VoipSwitch\", nonce=\"...\"": digest: invalid challenge prefix
The provider sends the auth scheme in uppercase (DIGEST). Per RFC 7235 §2.1 auth schemes are case-insensitive. github.com/icholy/digest v1.1.0 (currently in livekit/sip main) uses a case-sensitive HasPrefix("Digest "); v1.2.0 fixed it with strings.EqualFold. Could you bump it to v1.2.0 on Cloud? Related: livekit/sip#365.

As you probably saw in the PR but updating here for wider visibility, this PR has now been merged: