Bump cvxpy from 1.4.1 to 1.4.2 in /requirements (AtsushiSakai#970)

Bumps [cvxpy](https://github.com/cvxpy/cvxpy) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/cvxpy/cvxpy/releases)
- [Commits](cvxpy/cvxpy@v1.4.1...v1.4.2)

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

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

Author: dependabot[bot]

requirements/requirements.txt

@@ -1,7 +1,7 @@
 numpy == 1.26.3
 scipy == 1.12.0
 matplotlib == 3.8.2
-cvxpy == 1.4.1
+cvxpy == 1.4.2
 pytest == 7.4.4 # For unit test
 pytest-xdist == 3.5.0 # For unit test
 mypy == 1.8.0 # For unit test