build(deps): bump google.golang.org/protobuf from 1.31.0 to 1.33.0

Bumps google.golang.org/protobuf from 1.31.0 to 1.33.0.

---
updated-dependencies:
- dependency-name: google.golang.org/protobuf
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/google.golang.org/protobuf/encoding/protojson/decode.go

@@ -11,6 +11,7 @@ import (
 	"strconv"
 	"strings"
 
+	"google.golang.org/protobuf/encoding/protowire"
 	"google.golang.org/protobuf/internal/encoding/json"
 	"google.golang.org/protobuf/internal/encoding/messageset"
 	"google.golang.org/protobuf/internal/errors"
@@ -23,7 +24,7 @@ import (
 	"google.golang.org/protobuf/reflect/protoregistry"
 )
 
-// Unmarshal reads the given []byte into the given proto.Message.
+// Unmarshal reads the given []byte into the given [proto.Message].
 // The provided message must be mutable (e.g., a non-nil pointer to a message).
 func Unmarshal(b []byte, m proto.Message) error {
 	return UnmarshalOptions{}.Unmarshal(b, m)
@@ -37,7 +38,7 @@ type UnmarshalOptions struct {
 	// required fields will not return an error.
 	AllowPartial bool
 
-	// If DiscardUnknown is set, unknown fields are ignored.
+	// If DiscardUnknown is set, unknown fields and enum name values are ignored.
 	DiscardUnknown bool
 
 	// Resolver is used for looking up types when unmarshaling
@@ -47,9 +48,13 @@ type UnmarshalOptions struct {
 		protoregistry.MessageTypeResolver
 		protoregistry.ExtensionTypeResolver
 	}
+
+	// RecursionLimit limits how deeply messages may be nested.
+	// If zero, a default limit is applied.
+	RecursionLimit int
 }
 
-// Unmarshal reads the given []byte and populates the given proto.Message
+// Unmarshal reads the given []byte and populates the given [proto.Message]
 // using options in the UnmarshalOptions object.
 // It will clear the message first before setting the fields.
 // If it returns an error, the given message may be partially set.
@@ -67,6 +72,9 @@ func (o UnmarshalOptions) unmarshal(b []byte, m proto.Message) error {
 	if o.Resolver == nil {
 		o.Resolver = protoregistry.GlobalTypes
 	}
+	if o.RecursionLimit == 0 {
+		o.RecursionLimit = protowire.DefaultRecursionLimit
+	}
 
 	dec := decoder{json.NewDecoder(b), o}
 	if err := dec.unmarshalMessage(m.ProtoReflect(), false); err != nil {
@@ -114,6 +122,10 @@ func (d decoder) syntaxError(pos int, f string, x ...interface{}) error {
 
 // unmarshalMessage unmarshals a message into the given protoreflect.Message.
 func (d decoder) unmarshalMessage(m protoreflect.Message, skipTypeURL bool) error {
+	d.opts.RecursionLimit--
+	if d.opts.RecursionLimit < 0 {
+		return errors.New("exceeded max recursion depth")
+	}
 	if unmarshal := wellKnownTypeUnmarshaler(m.Descriptor().FullName()); unmarshal != nil {
 		return unmarshal(d, m)
 	}
@@ -266,7 +278,9 @@ func (d decoder) unmarshalSingular(m protoreflect.Message, fd protoreflect.Field
 	if err != nil {
 		return err
 	}
-	m.Set(fd, val)
+	if val.IsValid() {
+		m.Set(fd, val)
+	}
 	return nil
 }
 
@@ -329,7 +343,7 @@ func (d decoder) unmarshalScalar(fd protoreflect.FieldDescriptor) (protoreflect.
 		}
 
 	case protoreflect.EnumKind:
-		if v, ok := unmarshalEnum(tok, fd); ok {
+		if v, ok := unmarshalEnum(tok, fd, d.opts.DiscardUnknown); ok {
 			return v, nil
 		}
 
@@ -474,7 +488,7 @@ func unmarshalBytes(tok json.Token) (protoreflect.Value, bool) {
 	return protoreflect.ValueOfBytes(b), true
 }
 
-func unmarshalEnum(tok json.Token, fd protoreflect.FieldDescriptor) (protoreflect.Value, bool) {
+func unmarshalEnum(tok json.Token, fd protoreflect.FieldDescriptor, discardUnknown bool) (protoreflect.Value, bool) {
 	switch tok.Kind() {
 	case json.String:
 		// Lookup EnumNumber based on name.
@@ -482,6 +496,9 @@ func unmarshalEnum(tok json.Token, fd protoreflect.FieldDescriptor) (protoreflec
 		if enumVal := fd.Enum().Values().ByName(protoreflect.Name(s)); enumVal != nil {
 			return protoreflect.ValueOfEnum(enumVal.Number()), true
 		}
+		if discardUnknown {
+			return protoreflect.Value{}, true
+		}
 
 	case json.Number:
 		if n, ok := tok.Int(32); ok {
@@ -542,7 +559,9 @@ func (d decoder) unmarshalList(list protoreflect.List, fd protoreflect.FieldDesc
 			if err != nil {
 				return err
 			}
-			list.Append(val)
+			if val.IsValid() {
+				list.Append(val)
+			}
 		}
 	}
 
@@ -609,8 +628,9 @@ Loop:
 		if err != nil {
 			return err
 		}
-
-		mmap.Set(pkey, pval)
+		if pval.IsValid() {
+			mmap.Set(pkey, pval)
+		}
 	}
 
 	return nil