fix: update major version in go module path (#55)

ev1lQuark · web-flow · commit c1890c6b0eca · 2022-09-27T22:00:02.000+08:00
diff --git a/go.mod b/go.mod
@@ -1,4 +1,4 @@
-module github.com/casbin/xorm-adapter/v2
+module github.com/casbin/xorm-adapter/v3
 
 go 1.12
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-module github.com/casbin/xorm-adapter/v2`
	`1`	`+module github.com/casbin/xorm-adapter/v3`
`2`	`2`
`3`	`3`	`go 1.12`
`4`	`4`