add support for sync message version negotiation

Signed-off-by: Dmitri Dolguikh <dmitri.external@netbird.io>

management/internals/server/config/config.go

@@ -61,6 +61,8 @@ type Config struct {
 	// EmbeddedIdP contains configuration for the embedded Dex OIDC provider.
 	// When set, Dex will be embedded in the management server and serve requests at /oauth2/
 	EmbeddedIdP *idp.EmbeddedIdPConfig
+
+	SupportedSyncMessageVersions []string
 }
 
 // GetAuthAudiences returns the audience from the http config and device authorization flow config