fix(client-python): regenerate only MxSparseArray delta, drop spurious grpcio version churn

Commit 0702551 regenerated all three protos with grpcio-tools 1.81.1 /
protobuf 6.33.5, stamping every _pb2_grpc.py with GRPC_GENERATED_VERSION
'1.81.1' and every _pb2.py with 'Protobuf Python Version: 6.33.5'.  The
project pins grpcio>=1.80,<2 and the installed runtime is 1.80.0, so the
1.81.1 stamp caused a version error at import time, breaking pytest.

Fix: restore all generated files to the main baseline (grpcio 1.80.0,
protobuf 6.31.1 stamps), then regenerate only mxaccess_gateway.proto
using an isolated venv pinned to grpcio==1.80.0, grpcio-tools==1.80.0,
protobuf==6.31.1.  The net diff vs main is a single-file change to
mxaccess_gateway_pb2.py whose DESCRIPTOR blob now encodes the new
MxSparseArray / MxSparseElement messages and sparse_array_value field.
No _pb2_grpc.py and no galaxy/worker _pb2.py files change.

clients/python/src/zb_mom_ww_mxgateway/generated/galaxy_repository_pb2.py

@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: galaxy_repository.proto
-# Protobuf Python Version: 6.33.5
+# Protobuf Python Version: 6.31.1
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -12,8 +12,8 @@ from google.protobuf.internal import builder as _builder
 _runtime_version.ValidateProtobufRuntimeVersion(
     _runtime_version.Domain.PUBLIC,
     6,
-    33,
-    5,
+    31,
+    1,
     '',
     'galaxy_repository.proto'
 )

clients/python/src/zb_mom_ww_mxgateway/generated/galaxy_repository_pb2_grpc.py

@@ -5,7 +5,7 @@ import warnings
 
 import galaxy_repository_pb2 as galaxy__repository__pb2
 
-GRPC_GENERATED_VERSION = '1.81.1'
+GRPC_GENERATED_VERSION = '1.80.0'
 GRPC_VERSION = grpc.__version__
 _version_not_supported = False
 
@@ -25,7 +25,7 @@ if _version_not_supported:
     )
 
 
-class GalaxyRepositoryStub:
+class GalaxyRepositoryStub(object):
     """Wire-compatibility policy (ProtobufStyleGuide): this contract evolves
     additively only. Never renumber or repurpose an existing field number or
     enum value. When a field or enum value is removed, add a `reserved` range
@@ -72,7 +72,7 @@ class GalaxyRepositoryStub:
                 _registered_method=True)
 
 
-class GalaxyRepositoryServicer:
+class GalaxyRepositoryServicer(object):
     """Wire-compatibility policy (ProtobufStyleGuide): this contract evolves
     additively only. Never renumber or repurpose an existing field number or
     enum value. When a field or enum value is removed, add a `reserved` range
@@ -162,7 +162,7 @@ def add_GalaxyRepositoryServicer_to_server(servicer, server):
 
 
  # This class is part of an EXPERIMENTAL API.
-class GalaxyRepository:
+class GalaxyRepository(object):
     """Wire-compatibility policy (ProtobufStyleGuide): this contract evolves
     additively only. Never renumber or repurpose an existing field number or
     enum value. When a field or enum value is removed, add a `reserved` range

clients/python/src/zb_mom_ww_mxgateway/generated/mxaccess_gateway_pb2.py

@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: mxaccess_gateway.proto
-# Protobuf Python Version: 6.33.5
+# Protobuf Python Version: 6.31.1
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -12,8 +12,8 @@ from google.protobuf.internal import builder as _builder
 _runtime_version.ValidateProtobufRuntimeVersion(
     _runtime_version.Domain.PUBLIC,
     6,
-    33,
-    5,
+    31,
+    1,
     '',
     'mxaccess_gateway.proto'
 )

clients/python/src/zb_mom_ww_mxgateway/generated/mxaccess_gateway_pb2_grpc.py

@@ -5,7 +5,7 @@ import warnings
 
 import mxaccess_gateway_pb2 as mxaccess__gateway__pb2
 
-GRPC_GENERATED_VERSION = '1.81.1'
+GRPC_GENERATED_VERSION = '1.80.0'
 GRPC_VERSION = grpc.__version__
 _version_not_supported = False
 
@@ -25,7 +25,7 @@ if _version_not_supported:
     )
 
 
-class MxAccessGatewayStub:
+class MxAccessGatewayStub(object):
     """Wire-compatibility policy (ProtobufStyleGuide): this contract evolves
     additively only. Never renumber or repurpose an existing field number or
     enum value. When a field or enum value is removed, add a `reserved` range
@@ -78,7 +78,7 @@ class MxAccessGatewayStub:
                 _registered_method=True)
 
 
-class MxAccessGatewayServicer:
+class MxAccessGatewayServicer(object):
     """Wire-compatibility policy (ProtobufStyleGuide): this contract evolves
     additively only. Never renumber or repurpose an existing field number or
     enum value. When a field or enum value is removed, add a `reserved` range
@@ -189,7 +189,7 @@ def add_MxAccessGatewayServicer_to_server(servicer, server):
 
 
  # This class is part of an EXPERIMENTAL API.
-class MxAccessGateway:
+class MxAccessGateway(object):
     """Wire-compatibility policy (ProtobufStyleGuide): this contract evolves
     additively only. Never renumber or repurpose an existing field number or
     enum value. When a field or enum value is removed, add a `reserved` range

clients/python/src/zb_mom_ww_mxgateway/generated/mxaccess_worker_pb2.py

@@ -2,7 +2,7 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # NO CHECKED-IN PROTOBUF GENCODE
 # source: mxaccess_worker.proto
-# Protobuf Python Version: 6.33.5
+# Protobuf Python Version: 6.31.1
 """Generated protocol buffer code."""
 from google.protobuf import descriptor as _descriptor
 from google.protobuf import descriptor_pool as _descriptor_pool
@@ -12,8 +12,8 @@ from google.protobuf.internal import builder as _builder
 _runtime_version.ValidateProtobufRuntimeVersion(
     _runtime_version.Domain.PUBLIC,
     6,
-    33,
-    5,
+    31,
+    1,
     '',
     'mxaccess_worker.proto'
 )

clients/python/src/zb_mom_ww_mxgateway/generated/mxaccess_worker_pb2_grpc.py

@@ -4,7 +4,7 @@ import grpc
 import warnings
 
 
-GRPC_GENERATED_VERSION = '1.81.1'
+GRPC_GENERATED_VERSION = '1.80.0'
 GRPC_VERSION = grpc.__version__
 _version_not_supported = False