triple doupe-quoted strings should be used for docstrings

[ReimarBauer]

in mslib.mscolab.file_manager we have used triplke single-quoted

def delete_user_profile_image(self, image_to_be_deleted):
def delete_user_profile_image(self, image_to_be_deleted):

and in utils.ogcwms

def _buildMetadata(self, parse_remote_metadata=False)
def _buildMetadata(self, parse_remote_metadata=False):

see https://peps.python.org/pep-0257/

[levi178u]

@ReimarBauer the code changes must go to which branch for this

[ReimarBauer]

Bugfixes go to stable.

[levi178u]

@ReimarBauer I have raised a PR for the same , pls review it