GHSA-GW2X-Q739-QHCR RustFS gRPC GetMetrics deserialization panic enables remote DoS

Summary A malformed gRPC GetMetrics request causes getmetrics to unwrap failed deserialization of metrictype/opts, panicking the handler thread and enabling remote denial of service of the metrics endpoint. Details - Vulnerable code: rustfs/src/storage/tonicservice.rs:1775-1782: - MetricType and...