Not sanitizing dots in metrics names (#32)

* feat: not sanitizing strings for metrics

* feat: not sanitizing dots in metrics names

---------

Co-authored-by: Iusupov Anton <yusupovanton@outlook.com>

metrics/registry.go

@@ -33,7 +33,7 @@ func NewRegistry(subsystem, namespace string) Registry {
 }
 
 func (r *registry) sanitizeMetricName(name string) string {
-	return strings.ReplaceAll(strings.ReplaceAll(name, ".", "_"), "-", "_")
+	return strings.ReplaceAll(name, "-", "_")
 }
 
 func (r *registry) Inc(name string) {