Bump tsuyoshicho/action-mypy from 4 to 5

Bumps [tsuyoshicho/action-mypy](https://github.com/tsuyoshicho/action-mypy) from 4 to 5.
- [Release notes](https://github.com/tsuyoshicho/action-mypy/releases)
- [Commits](tsuyoshicho/action-mypy@v4...v5)

---
updated-dependencies:
- dependency-name: tsuyoshicho/action-mypy
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/python.yml

@@ -125,7 +125,7 @@ jobs:
         run: python -m pip install .[typing]
 
       - name: Mypy on modified files
-        uses: tsuyoshicho/action-mypy@v4
+        uses: tsuyoshicho/action-mypy@v5
         with:
           github_token: ${{ secrets.github_token }}
           # Change reviewdog reporter if you need [github-pr-check,github-check,github-pr-review].
@@ -134,7 +134,7 @@ jobs:
           fail_on_error: false
 
       - name: Mypy on required files
-        uses: tsuyoshicho/action-mypy@v4
+        uses: tsuyoshicho/action-mypy@v5
         with:
           github_token: ${{ secrets.github_token }}
           # Change reviewdog reporter if you need [github-pr-check,github-check,github-pr-review].