Fix mypy

Author: OlivieFranklova

release_notes_generator/generator.py

@@ -25,7 +25,7 @@
 
 from github import Github
 
-from model.MinedData import MinedData
+from release_notes_generator.model.MinedData import MinedData
 from release_notes_generator.miner import DataMiner
 from release_notes_generator.action_inputs import ActionInputs
 from release_notes_generator.builder import ReleaseNotesBuilder