chore: all metrics under 'ceramic_one' prom registry

metrics/src/core.rs

@@ -16,7 +16,7 @@ pub(crate) struct Core {
 
 impl Default for Core {
     fn default() -> Self {
-        let mut reg = Registry::default();
+        let mut reg = Registry::with_prefix("ceramic_one");
         Core {
             bitswap_metrics: bitswap::Metrics::new(&mut reg),
             libp2p_metrics: libp2p::metrics::Metrics::new(&mut reg),