Add more linters to improve code readability (#19989)

Add nakedret, unconvert, wastedassign, stylecheck and nolintlint linters to improve code readability

- nakedret - https://github.com/alexkohler/nakedret - nakedret is a Go static analysis tool to find naked returns in functions greater than a specified function length.
- unconvert - https://github.com/mdempsky/unconvert - Remove unnecessary type conversions
- wastedassign - https://github.com/sanposhiho/wastedassign -  wastedassign finds wasted assignment statements.
- notlintlint -  Reports ill-formed or insufficient nolint directives
- stylecheck - https://staticcheck.io/docs/checks/#ST - keep style consistent
  - excluded: [ST1003 - Poorly chosen identifier](https://staticcheck.io/docs/checks/#ST1003) and [ST1005 - Incorrectly formatted error string](https://staticcheck.io/docs/checks/#ST1005)

cmd/hook.go

@@ -792,7 +792,7 @@ func writeDataPktLine(out io.Writer, data []byte) error {
 	if err != nil {
 		return fail("Internal Server Error", "Pkt-Line response failed: %v", err)
 	}
-	if 4 != lr {
+	if lr != 4 {
 		return fail("Internal Server Error", "Pkt-Line response failed: %v", err)
 	}