Update typing dependencies for mypy change

Author: PeterJCLaw

scripts/import_backends.py

@@ -4,7 +4,7 @@
 from getpass import getpass
 from typing import TYPE_CHECKING, Dict, List, Sequence, cast
 
-import github  # type: ignore
+import github
 from termcolor import cprint
 from ticket_type import Ticket
 
@@ -200,7 +200,7 @@ def description_text(self, ticket: Ticket) -> str:
 
         return text.strip()
 
-    def get_or_create_milestone(self, title: str) -> github.Milestone:
+    def get_or_create_milestone(self, title: str) -> github.Milestone.Milestone:
         try:
             return self.milestones[title]
         except KeyError:

scripts/requirements-dev.txt

@@ -99,6 +99,10 @@ testfixtures==6.17.1
     # via flake8-isort
 toml==0.10.2
     # via mypy
+types-pyyaml==5.4.1
+    # via -r ./scripts/typing/requirements.in
+types-termcolor==0.1.0
+    # via -r ./scripts/typing/requirements.in
 typing-extensions==3.10.0.0
     # via
     #   -r ./scripts/typing/requirements.in

scripts/typing/requirements.in

@@ -1,2 +1,5 @@
 mypy
 typing-extensions
+
+types-PyYAML
+types-termcolor