Bump go.mod to Go 1.16

bep · bep · commit 782c79ae61a5 · 2021-03-03T09:17:57.000+01:00
Fixes gohugoio#8294
diff --git a/go.mod b/go.mod
@@ -69,4 +69,4 @@ require (
 	gopkg.in/yaml.v2 v2.4.0
 )
 
-go 1.12
+go 1.16
