rebase: bump google.golang.org/protobuf from 1.36.2 to 1.36.3

Bumps google.golang.org/protobuf from 1.36.2 to 1.36.3.

---
updated-dependencies:
- dependency-name: google.golang.org/protobuf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

vendor/google.golang.org/protobuf/proto/decode.go

@@ -172,7 +172,7 @@ func (o UnmarshalOptions) unmarshalMessageSlow(b []byte, m protoreflect.Message)
 		var err error
 		if fd == nil {
 			err = errUnknown
-		} else if flags.ProtoLegacy {
+		} else if flags.ProtoLegacyWeak {
 			if fd.IsWeak() && fd.Message().IsPlaceholder() {
 				err = errUnknown // weak referent is not linked in
 			}