chore: bump kmeans dep

Author: muesli

go.mod

@@ -5,6 +5,6 @@ go 1.15
 require (
 	github.com/lucasb-eyer/go-colorful v1.2.0
 	github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762
-	github.com/muesli/kmeans v0.3.0
+	github.com/muesli/kmeans v0.3.1
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673
 )

go.sum

@@ -1,13 +1,11 @@
-github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
-github.com/lucasb-eyer/go-colorful v1.0.2/go.mod h1:0MS4r+7BZKSJ5mw4/S5MPN+qHFF1fYclkSPilDOKW0s=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/muesli/clusters v0.0.0-20180605185049-a07a36e67d36/go.mod h1:mw5KDqUj0eLj/6DUNINLVJNoPTFkEuGMHtJsXLviLkY=
 github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762 h1:p4A2Jx7Lm3NV98VRMKlyWd3nqf8obft8NfXlAUmqd3I=
 github.com/muesli/clusters v0.0.0-20200529215643-2700303c1762/go.mod h1:mw5KDqUj0eLj/6DUNINLVJNoPTFkEuGMHtJsXLviLkY=
-github.com/muesli/kmeans v0.3.0 h1:cI2cpeS8m3pm+gTOdzl+7SlzZYSe+x0XoqXUyUvb1ro=
-github.com/muesli/kmeans v0.3.0/go.mod h1:eNyybq0tX9/iBEP6EMU4Y7dpmGK0uEhODdZpnG1a/iQ=
+github.com/muesli/kmeans v0.3.1 h1:KshLQ8wAETfLWOJKMuDCVYHnafddSa1kwGh/IypGIzY=
+github.com/muesli/kmeans v0.3.1/go.mod h1:8/OvJW7cHc1BpRf8URb43m+vR105DDe+Kj1WcFXYDqc=
 github.com/wcharczuk/go-chart/v2 v2.1.0/go.mod h1:yx7MvAVNcP/kN9lKXM/NTce4au4DFN99j6i1OwDclNA=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
 github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=