Bump mypy version

Author: domdfcoding

repo_helper.yml

@@ -13,7 +13,7 @@ use_flit: true
 min_coverage: 90
 docs_fail_on_warning: true
 tox_testenv_extras: all
-mypy_version: "0.931"
+mypy_version: "0.971"
 python_deploy_version: 3.6
 
 conda_extras:

tox.ini

@@ -135,7 +135,7 @@ ignore_errors = True
 changedir = {toxinidir}
 extras = all
 deps =
-    mypy==0.931
+    mypy==0.971
     -r{toxinidir}/tests/requirements.txt
     -r{toxinidir}/stubs.txt
 commands = mypy consolekit tests {posargs}