Merge pull request #424 from dianna-ai/423-pin-prospector

Pin prospector version to avoid pyroma install error

Author: cwmeijer

setup.cfg

@@ -62,7 +62,7 @@ install_requires =
 [options.extras_require]
 dev =
     bump2version
-    prospector[with_pyroma]
+    prospector[with_pyroma]==1.7.7  # last version that works, see https://github.com/PyCQA/prospector/issues/545
     pylint==2.15.6
     isort
     pytest