chore(deps): update module go to 1.19

renovate[bot] · web-flow · commit 3347bf21e1e6 · 2022-09-25T21:32:05.000Z
diff --git a/go.mod b/go.mod
@@ -1,6 +1,6 @@
 module github.com/genert/pop3
 
-go 1.16
+go 1.19
 
 require (
 	github.com/jhillyerd/enmime v0.9.2
