Remove pytest typing ignore

Since version 6 pytest ships with typing.

Also update it to latest version.

Author: bluetech

setup.cfg

@@ -49,5 +49,3 @@ warn_unused_configs = True
 warn_unused_ignores = True
 [mypy-h11.*]
 ignore_missing_imports = True
-[mypy-pytest.*]
-ignore_missing_imports = True

tox.ini

@@ -12,7 +12,7 @@ python =
 passenv =
     GITHUB_*
 deps =
-    pytest==6.0.1
+    pytest==6.1.2
     pytest-cov==2.10.1
     pytest-xdist==2.1.0
 commands =
@@ -40,6 +40,7 @@ commands =
 basepython = python3.8
 deps =
     mypy==0.782
+    pytest==6.1.2
 commands =
     mypy src/ test/ example/