📌 update go version to 1.14

ccamel · ccamel · commit b206e09d02e4 · 2020-05-27T12:19:17.000+02:00
This is in line with the version of go used by the CI.
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module github.com/ccamel/go-graphql-subscription-example
 
-go 1.12
+go 1.14
 
 require (
 	github.com/antonmedv/expr v1.8.8
