Bump mypy from 1.7.0 to 1.7.1 (#400)

Bumps [mypy](https://github.com/python/mypy) from 1.7.0 to 1.7.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.7.0...v1.7.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements/constraints.txt

@@ -102,7 +102,7 @@ multidict==6.0.4
     #   -r requirements/multidict.in
     #   -r requirements/runtime-deps.in
     #   yarl
-mypy==1.7.0 ; implementation_name == "cpython"
+mypy==1.7.1 ; implementation_name == "cpython"
     # via
     #   -r requirements/lint.in
     #   -r requirements/test.in

requirements/dev.txt

@@ -99,7 +99,7 @@ multidict==6.0.4
     # via
     #   -r requirements/runtime-deps.in
     #   yarl
-mypy==1.7.0 ; implementation_name == "cpython"
+mypy==1.7.1 ; implementation_name == "cpython"
     # via
     #   -r requirements/lint.in
     #   -r requirements/test.in

requirements/lint.txt

@@ -22,7 +22,7 @@ identify==2.5.26
     # via pre-commit
 iniconfig==2.0.0
     # via pytest
-mypy==1.7.0 ; implementation_name == "cpython"
+mypy==1.7.1 ; implementation_name == "cpython"
     # via -r requirements/lint.in
 mypy-extensions==1.0.0
     # via mypy

requirements/test.txt

@@ -49,7 +49,7 @@ multidict==6.0.4
     # via
     #   -r requirements/runtime-deps.in
     #   yarl
-mypy==1.7.0 ; implementation_name == "cpython"
+mypy==1.7.1 ; implementation_name == "cpython"
     # via -r requirements/test.in
 mypy-extensions==1.0.0
     # via mypy