feat(spanner): support google_spanner_instance_partition (#13066)

[upstream:0af0ba817291e1c646e1960da5e166a9f5173dc5]

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

.changelog/13066.txt

@@ -0,0 +1,3 @@
+```release-note:new-resource
+`google_spanner_instance_partition`
+```

google-beta/provider/provider_mmv1_resources.go

@@ -535,9 +535,9 @@ var handwrittenIAMDatasources = map[string]*schema.Resource{
 }
 
 // Resources
-// Generated resources: 608
+// Generated resources: 609
 // Generated IAM resources: 306
-// Total generated resources: 914
+// Total generated resources: 915
 var generatedResources = map[string]*schema.Resource{
 	"google_folder_access_approval_settings":                                     accessapproval.ResourceAccessApprovalFolderSettings(),
 	"google_organization_access_approval_settings":                               accessapproval.ResourceAccessApprovalOrganizationSettings(),
@@ -1379,6 +1379,7 @@ var generatedResources = map[string]*schema.Resource{
 	"google_spanner_database":                                                    spanner.ResourceSpannerDatabase(),
 	"google_spanner_instance":                                                    spanner.ResourceSpannerInstance(),
 	"google_spanner_instance_config":                                             spanner.ResourceSpannerInstanceConfig(),
+	"google_spanner_instance_partition":                                          spanner.ResourceSpannerInstancePartition(),
 	"google_sql_database":                                                        sql.ResourceSQLDatabase(),
 	"google_sql_source_representation_instance":                                  sql.ResourceSQLSourceRepresentationInstance(),
 	"google_storage_bucket_iam_binding":                                          tpgiamresource.ResourceIamBinding(storage.StorageBucketIamSchema, storage.StorageBucketIamUpdaterProducer, storage.StorageBucketIdParseFunc),