update goctl to go 1.16 for io/fs usage (#1571)

* update goctl to go 1.16 for io/fs usage

* feat: support pg serial type for auto_increment (#1563)

* add correct example for pg's url

* 🐞 fix: merge

* 🐞 fix: pg default port

* ✨ feat: support serial type

Co-authored-by: kurimi1 <d0n41df@gmail.com>

* chore: format code

Co-authored-by: toutou_o <33993460+kurimi1@users.noreply.github.com>
Co-authored-by: kurimi1 <d0n41df@gmail.com>

tools/goctl/completion/const.go

@@ -1,7 +1,9 @@
 package completion
 
-const BashCompletionFlag = `generate-goctl-completion`
-const defaultCompletionFilename = "goctl_autocomplete"
+const (
+	BashCompletionFlag        = `generate-goctl-completion`
+	defaultCompletionFilename = "goctl_autocomplete"
+)
 const (
 	magic = 1 << iota
 	flagZsh