Update api/openapi-spec/v1.0.yaml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: dschmidt

api/openapi-spec/v1.0.yaml

@@ -1354,8 +1354,10 @@ paths:
           description: Pre-authenticated redirect to the file content.
           headers:
             Location:
+              required: true
               schema:
                 type: string
+                format: uri
               description: The pre-authenticated URL where the content can be downloaded.
         '404':
           description: The driveItem was not found or is not a file.