Fix .bumpversion.cfg after code formatting

Author: amotl

.bumpversion.cfg

@@ -7,9 +7,9 @@ tag_name = {new_version}
 allow_dirty = False
 
 [bumpversion:file:setup.py]
-search = version='{current_version}'
-replace = version='{new_version}'
+search = version="{current_version}"
+replace = version="{new_version}"
 
 [bumpversion:file:mqttwarn/__init__.py]
-search = __version__   = '{current_version}'
-replace = __version__   = '{new_version}'
+search = __version__ = "{current_version}"
+replace = __version__ = "{new_version}"