Fix deprecation warnings for invalid escape sequences

Changed dict``\s to dict``s in docstrings to fix:
- DeprecationWarning in pysirix/sync_client.py:24
- DeprecationWarning in pysirix/json_store.py:93

Author: Johannes Lichtenberger

pysirix/json_store.py

@@ -93,7 +93,7 @@ def insert_many(
         """
         Inserts a list of records into the store. New records are added at the the tail of the store.
 
-        :param insert_list: either a JSON string of ``list`` of ``dict``\s, or a ``list`` that can be converted to JSON
+        :param insert_list: either a JSON string of ``list`` of ``dict``s, or a ``list`` that can be converted to JSON
         :return: a ``str`` "{rest: []}" or an ``Awaitable[str]`` resolving to this string.
         """
         insert_list = dumps(insert_list)

pysirix/sync_client.py

@@ -26,7 +26,7 @@ def global_info(self, resources: bool = True) -> List[Dict]:
         the endpoint is called with the query ``withResources=true``
 
         :param resources: whether to query resources as well
-        :return: a ``list`` of ``dict``\s, where each ``dict`` has a ``name``
+        :return: a ``list`` of ``dict``s, where each ``dict`` has a ``name``
                         field, a ``type`` field, and (if ``resources`` is
                         ``True``) a ``resources`` field (containing a ``list`` of names).
         :raises: :py:class:`pysirix.SirixServerError`.