set go 1.15 as minimum version required to build (#240)

kevinsamoei · web-flow · commit a04bcd2526e0 · 2021-05-28T11:45:25.000+03:00
diff --git a/go.mod b/go.mod
@@ -56,4 +56,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
 )
 
-go 1.14
+go 1.15
