Update gRPC and protobuf (#668)

* Update gRPC and protobuf

[ML-6341](https://iguazio.atlassian.net/browse/ML-6341)

* Revert to Go 1.19

* Get it working

* Fix

* Regenerate python gRPC code

* Update python access to protobuf message to work with protobuf 4

* Specify protobuf requirement explicitly

* Remove reference to MessageMapContainer

* Fix test message

* Revert "Remove reference to MessageMapContainer"

* Fix Dockerfile to always build for linux and amd64

backends/backends.go

@@ -25,6 +25,7 @@ import (
 	"reflect"
 	"strings"
 	"sync"
+	"unicode"
 
 	"github.com/nuclio/logger"
 	"github.com/pkg/errors"
@@ -107,6 +108,9 @@ func ValidateRequest(backend string, request interface{}, allowedFields map[stri
 	for i := 0; i < reftype.NumField(); i++ {
 		field := reftype.Field(i)
 		fieldName := field.Name
+		if unicode.IsLower(rune(fieldName[0])) {
+			continue
+		}
 		fieldValue := reflect.ValueOf(request).Elem().FieldByName(fieldName).Interface()
 		zeroValue := reflect.Zero(field.Type).Interface()
 		if !globalRequestFieldsByRequestType[reftype][fieldName] && !allowedFields[fieldName] && !reflect.DeepEqual(fieldValue, zeroValue) {

clients/py/requirements.txt

@@ -1,6 +1,5 @@
 googleapis-common-protos>=1.5.3
-# grpcio-tools 1.34.0 must not be used as it segfaults (1.34.1 ok).
-# grpcio-tools 1.49 raises protobuf version from 3.x to 4.x, which breaks compatibility.
-grpcio-tools>=1.30,!=1.34.0,<1.49
+grpcio-tools>=1.49
+protobuf~=4.0
 pandas>=0.23.4
 requests>=2.19.1

clients/py/tests/test_pbutils.py

@@ -34,7 +34,7 @@ def test_encode_df():
     names = [col.name for col in msg.columns]
     assert set(names) == set(df.columns), 'columns mismatch'
     assert not msg.indices, 'has index'
-    assert pbutils.pb2py(msg.labels) == labels, 'lables mismatch'
+    assert pbutils.pb2py(msg.labels) == labels, 'labels mismatch'
 
     # Now with index
     index_name = 'DATE'