fix(deps) Update dependency black to v26 [SECURITY]

Author: renovate[bot]

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "Flask-Session2"
-version = "1.3.1"
+version = "1.3.2"
 description = "Adds server-side session support to your Flask application"
 authors = ["Shipeng Feng <fsp261@gmail.com>"]
 maintainers=["Christopher Pickering"]
@@ -29,7 +29,7 @@ cachelib = "^0.10.0"
 pytz = "^2022.2.1"
 
 [tool.poetry.dev-dependencies]
-black = "^23.0.0"
+black = "^26.0.0"
 isort = "^5.10.1"
 pymongo = "^4.2.0"
 Flask-SQLAlchemy = "^3.0.0"