docs(go): fix version (#1986)

Author: knqyf263

docs/docs/vulnerability/languages/golang.md

@@ -20,7 +20,7 @@ Depending on Go versions, the required files are different.
 | Version | Required files | Offline | License |
 |---------|:--------------:|:-------:|:-------:|
 | \>=1.17 |     go.mod     |    ✓    |    -    |
-| <1.16   | go.mod, go.sum |    ✓    |    -    |
+| <1.17   | go.mod, go.sum |    ✓    |    -    |
 
 In Go 1.17+ projects, Trivy uses `go.mod` for direct/indirect dependencies.
 On the other hand, it uses `go.mod` for direct dependencies and `go.sum` for indirect dependencies in Go 1.16 or less.