Merge pull request #63 from NHSDigital/dependabot/pip/black-26.3.1

build(deps-dev): bump black from 25.12.0 to 26.3.1

Author: sathiya-nhs

poetry.lock

@@ -29,7 +29,7 @@ requests = "^2.32.3"
 pytest = "^8.3.5"
 coverage = "^7.13.4"
 flake8 = "^7.2.0"
-black = "^25.1.0"
+black = "^26.3.1"
 pip-licenses = "^5.0.0"
 jinja2 = "^3.1.6"
 pytest-nhsd-apim = "^5.0.0"