anchors/even is now default channel type, but not represented in grpc

[JssDWt]

Issue and Steps to Reproduce

The default channel type is (appears to be) now anchors/even. This channel type is not represented in cln-grpc, causing deserialization of the ChannelTypeName enum to fail with:

Failed to deserialize response : unknown variant `anchors/even`, expected one of `static_remotekey/even`, `anchor_outputs/even`, `anchors_zero_fee_htlc_tx/even`, `scid_alias/even`, `zeroconf/even`

Steps to reproduce:

• start up 2 connected core lightning nodes
• call FundChannel over grpc

getinfo output

cln v24.08 on regtest

NOTE: This makes breez's lspd incompatible with cln v24.08 currently.