chore(deps-dev): Bump mypy in /packages/jsii-pacmak/test/generated-code

Bumps [mypy](https://github.com/python/mypy) from 1.4.1 to 1.5.0.
- [Commits](python/mypy@v1.4.1...v1.5.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

packages/jsii-pacmak/test/generated-code/requirements-dev.txt

@@ -1,2 +1,2 @@
-mypy==1.4.1
+mypy==1.5.0
 pip==23.2.1 # required to use --config-settings