mod+lnrpc: bump google.golang.org/protobuf to v1.30.0

lnrpc/signrpc/signer.pb.go

@@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.27.1
+// 	protoc-gen-go v1.30.0
 // 	protoc        v3.6.1
 // source: signrpc/signer.proto
 
@@ -968,7 +968,7 @@ type SharedKeyRequest struct {
 	// If this parameter is not set then the node's identity private key will be
 	// used.
 	//
-	// Deprecated: Do not use.
+	// Deprecated: Marked as deprecated in signrpc/signer.proto.
 	KeyLoc *KeyLocator `protobuf:"bytes,2,opt,name=key_loc,json=keyLoc,proto3" json:"key_loc,omitempty"`
 	// A key descriptor describes the key used for performing ECDH. Either a key
 	// locator or a raw public key is expected, if neither is supplied, defaults to
@@ -1015,7 +1015,7 @@ func (x *SharedKeyRequest) GetEphemeralPubkey() []byte {
 	return nil
 }
 
-// Deprecated: Do not use.
+// Deprecated: Marked as deprecated in signrpc/signer.proto.
 func (x *SharedKeyRequest) GetKeyLoc() *KeyLocator {
 	if x != nil {
 		return x.KeyLoc