update go.sum for go-eth2-client v0.7.0

Author: eunsoo-icon

go.sum

@@ -321,6 +321,7 @@ github.com/icon-project/btp2 v1.0.6 h1:ZRM+wgXsQHMqyE9Dqbc4JJ/AYO07/XZ+aF+INYXi6
 github.com/icon-project/btp2 v1.0.6/go.mod h1:IImqYQw16GpzmL2G89Uoi7aAlPfW9dZm9q/9UPglUxE=
 github.com/icon-project/go-eth2-client v0.6.1 h1:GpuEoJul92lxFlycg5DEKG7jD+3mB2TuOXeYK5QevEg=
 github.com/icon-project/go-eth2-client v0.6.1/go.mod h1:/Oh6YTuHmHhgLN/ZnQRKHGc7HdIzGlDkI2vjNZvOsvA=
+github.com/icon-project/go-eth2-client v0.7.0/go.mod h1:PLRKnILnr63V3yl2VagBqnhVRFBWc0V+JhQSsXQaSwQ=
 github.com/imkira/go-interpol v1.1.0/go.mod h1:z0h2/2T3XF8kyEPpRgJ3kmNv+C43p+I/CoI+jC3w2iA=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=