Merge pull request #1332 from tahoe-lafs/4062-upgrades

Upgrade type and code check tools

Fixes ticket:4062

tox.ini

@@ -99,9 +99,10 @@ skip_install = true
 deps =
      # Pin a specific version so we get consistent outcomes; update this
      # occasionally:
-     ruff == 0.0.278
+     ruff == 0.0.287
      # towncrier doesn't work with importlib_resources 6.0.0
      # https://github.com/twisted/towncrier/issues/528
+     # Will be fixed in first version of Towncrier that is larger than 2023.6.
      importlib_resources < 6.0.0
      towncrier
 # On macOS, git inside of towncrier needs $HOME.
@@ -125,7 +126,7 @@ commands =
 [testenv:typechecks]
 basepython = python3
 deps =
-    mypy==1.4.1
+    mypy==1.5.1
     mypy-zope
     types-mock
     types-six
@@ -134,7 +135,7 @@ deps =
     types-pyOpenSSL
     foolscap
     # Upgrade when new releases come out:
-    Twisted==22.10.0
+    Twisted==23.8.0
 commands = mypy src