Update pgmetrics dependency.

Author: mdevan

go.mod

@@ -2,7 +2,7 @@ module github.com/rapidloop/pgdash
 
 require (
 	github.com/pborman/getopt v0.0.0-20180811024354-2b5b3bfb099b
-	github.com/rapidloop/pgmetrics v1.10.2
+	github.com/rapidloop/pgmetrics v1.10.4
 )
 
 go 1.15

go.sum

@@ -9,8 +9,8 @@ github.com/pborman/getopt v0.0.0-20180811024354-2b5b3bfb099b h1:K1wa7ads2Bu1PavI
 github.com/pborman/getopt v0.0.0-20180811024354-2b5b3bfb099b/go.mod h1:85jBQOZwpVEaDAr341tbn15RS4fCAsIst0qp7i8ex1o=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/rapidloop/pgmetrics v1.10.2 h1:AXK4Xv+ihUujgQruBsoflaNUd/+9vuAvo5gUJDXuYXU=
-github.com/rapidloop/pgmetrics v1.10.2/go.mod h1:gYj4im8OAHmY5yd+2pM/ITQHrEvWzhXv1ydLGs1NX8A=
+github.com/rapidloop/pgmetrics v1.10.4 h1:DctwLzC/CKsOKvTro0FyqL3EUojeVqeKpkFnWbSuQTI=
+github.com/rapidloop/pgmetrics v1.10.4/go.mod h1:gYj4im8OAHmY5yd+2pM/ITQHrEvWzhXv1ydLGs1NX8A=
 github.com/rapidloop/pq v1.0.1-0.20190218105255-66681b501d6d/go.mod h1:KCIg3rAcDl7ELp5s30z4lIp1xaOujoaMXnlYKhHECFo=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=