handle required and conflicts edge-case

Author: BBBmau

mmv1/products/bigquerydatatransfer/Config.yaml

@@ -227,14 +227,18 @@ properties:
         description: |
           The Secret Access Key of the AWS account transferring data from.
         sensitive: true
-        exactly_one_of:
+        at_least_one_of:
           - 'sensitive_params.0.secretAccessKey'
           - 'sensitive_params.0.secretAccessKeyWo'
+        conflicts:
+          - 'sensitive_params.0.secretAccessKeyWo'
       - name: 'secretAccessKeyWo'
         type: String
         description: |
           The Secret Access Key of the AWS account transferring data from.
         write_only: true
-        exactly_one_of:
+        at_least_one_of:
           - 'sensitive_params.0.secretAccessKeyWo'
           - 'sensitive_params.0.secretAccessKey'
+        conflicts:
+          - 'sensitive_params.0.secretAccessKey'