chore(bind): return 413 status code when error is http.MaxBytesError (#4227)

* Bind: return 413 status code when error is `http.MaxBytesError`

The Go standard library includes a method `http.MaxBytesReader` that allows limiting the request body. For example, users can create a middleware like:

```go
func MiddlewareMaxBodySize(c *gin.Context) {
	// Limit request body to 100 bytes
	c.Request.Body = http.MaxBytesReader(c.Writer, c.Request.Body, 100)
	c.Next()
}
```

When the body exceeds the limit, reading from the request body returns an error of type `http.MaxBytesError`.

This PR makes sure that when the error is of kind `http.MaxBytesError`, Gin returns the correct status code 413 (Request Entity Too Large) instead of a generic 400 (Bad Request).

* Disable test when using sonic

* Fix

* Disable for go-json too

* Add references to GitHub issues

* Test that the response is 400 for sonic and go-json

internal/json/go_json.go

@@ -20,3 +20,6 @@ var (
 	// NewEncoder is exported by gin/json package.
 	NewEncoder = json.NewEncoder
 )
+
+// Package indicates what library is being used for JSON encoding.
+const Package = "github.com/goccy/go-json"

internal/json/json.go

@@ -20,3 +20,6 @@ var (
 	// NewEncoder is exported by gin/json package.
 	NewEncoder = json.NewEncoder
 )
+
+// Package indicates what library is being used for JSON encoding.
+const Package = "encoding/json"

internal/json/jsoniter.go

@@ -21,3 +21,6 @@ var (
 	// NewEncoder is exported by gin/json package.
 	NewEncoder = json.NewEncoder
 )
+
+// Package indicates what library is being used for JSON encoding.
+const Package = "github.com/json-iterator/go"

internal/json/sonic.go

@@ -21,3 +21,6 @@ var (
 	// NewEncoder is exported by gin/json package.
 	NewEncoder = json.NewEncoder
 )
+
+// Package indicates what library is being used for JSON encoding.
+const Package = "github.com/bytedance/sonic"