fix: requirements/requirements_dev.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-BLACK-6256273

requirements/requirements_dev.txt

@@ -1,7 +1,7 @@
 pip>=19.0.3
 wheel>=0.33.0
 twine>=1.13.0
-black>=18.9b0
+black>=24.3.0
 pytest>=4.3.0
 pytest-cov>=2.6.1
 coveralls>=1.6.0