Add missing black dev dependency

Author: gounux

poetry.lock

@@ -24,6 +24,7 @@ pre-commit = "^4.1.0"
 pytest = "^8.3.4"
 pytest-cov = "^6.0.0"
 codecov = "^2.1.13"
+black = "^25.1.0"
 
 [tool.pytest]
 addopts = "--junitxml=junit/test-results.xml --cov=gischat --cov-report=html --cov-report=term --cov-report=xml"