upgrade mypy to get typeshed fixes

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.5.0
+    rev: v3.1.0
     hooks:
     -   id: trailing-whitespace
     -   id: end-of-file-fixer
@@ -12,20 +12,20 @@ repos:
     -   id: requirements-txt-fixer
     -   id: double-quote-string-fixer
 -   repo: https://gitlab.com/pycqa/flake8
-    rev: 3.8.0
+    rev: 3.8.3
     hooks:
     -   id: flake8
         additional_dependencies: [flake8-typing-imports==1.6.0]
 -   repo: https://github.com/pre-commit/mirrors-autopep8
-    rev: v1.5.2
+    rev: v1.5.3
     hooks:
     -   id: autopep8
 -   repo: https://github.com/pre-commit/pre-commit
-    rev: v2.4.0
+    rev: v2.6.0
     hooks:
     -   id: validate_manifest
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.4.1
+    rev: v2.6.2
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]
@@ -40,11 +40,11 @@ repos:
     -   id: add-trailing-comma
         args: [--py36-plus]
 -   repo: https://github.com/asottile/setup-cfg-fmt
-    rev: v1.9.0
+    rev: v1.10.0
     hooks:
     -   id: setup-cfg-fmt
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.770
+    rev: v0.782
     hooks:
     -   id: mypy
         exclude: ^testing/resources/

pre_commit/file_lock.py

@@ -21,13 +21,13 @@ if os.name == 'nt':  # pragma: no cover (windows)
     ) -> Generator[None, None, None]:
         try:
             # TODO: https://github.com/python/typeshed/pull/3607
-            msvcrt.locking(fileno, msvcrt.LK_NBLCK, _region)  # type: ignore
+            msvcrt.locking(fileno, msvcrt.LK_NBLCK, _region)
         except OSError:
             blocked_cb()
             while True:
                 try:
                     # TODO: https://github.com/python/typeshed/pull/3607
-                    msvcrt.locking(fileno, msvcrt.LK_LOCK, _region)  # type: ignore  # noqa: E501
+                    msvcrt.locking(fileno, msvcrt.LK_LOCK, _region)
                 except OSError as e:
                     # Locking violation. Returned when the _LK_LOCK or _LK_RLCK
                     # flag is specified and the file cannot be locked after 10
@@ -46,7 +46,7 @@ if os.name == 'nt':  # pragma: no cover (windows)
             # "Regions should be locked only briefly and should be unlocked
             # before closing a file or exiting the program."
             # TODO: https://github.com/python/typeshed/pull/3607
-            msvcrt.locking(fileno, msvcrt.LK_UNLCK, _region)  # type: ignore
+            msvcrt.locking(fileno, msvcrt.LK_UNLCK, _region)
 else:  # pragma: win32 no cover
     import fcntl