bump go.mod to Go 1.19 and run go fix

web3-bot · rvagg · commit 1cacdf00f13b · 2023-03-06T13:54:45.000+11:00
diff --git a/go.mod b/go.mod
@@ -32,4 +32,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
 )
 
-go 1.18
+go 1.19
