[Storage] Fix Azure#16979: az storage container create fails when providing storage container metadata (Azure#17202)

* add rdbms code owner

* validate metadata

* tests

* test record

Author: evelyn-ys

src/azure-cli/azure/cli/command_modules/storage/_validators.py

@@ -1368,6 +1368,7 @@ def validate_client_auth_parameter(cmd, ns):
                        "when creating container.")
     else:
         validate_client_parameters(cmd, ns)
+    validate_metadata(ns)
 
 
 def validate_encryption_scope_client_params(ns):

src/azure-cli/azure/cli/command_modules/storage/tests/latest/recordings/test_legal_hold.yaml

@@ -15,7 +15,7 @@ def test_legal_hold(self, resource_group):
         self.cmd('storage account create -g {} -n {} --kind StorageV2'.format(
             resource_group, storage_account))
         container_name = 'container1'
-        self.cmd('storage container create --account-name {} -n {}'.format(storage_account, container_name))
+        self.cmd('storage container create --account-name {} -n {} --metadata k1=v1 k2=v2'.format(storage_account, container_name))
 
         self.cmd('storage container legal-hold show --account-name {} -c {} -g {}'.format(
             storage_account, container_name, resource_group), checks=[