upgrade libs and follow linter recommandations

pyproject.toml

@@ -4,24 +4,26 @@ version = "2.0b2"
 description = "STAtic COmmenting SYStem"
 authors = ["Yax"]
 readme = "README.md"
+include = ["run.py"]
 
 [tool.poetry.dependencies]
 python = "^3.9"
 apscheduler = "^3.6.3"
-flask = "^1.1.1"
-peewee = "^3.13.1"
 pyrss2gen = "^1.1"
 profig = "^0.5.1"
 markdown = "^3.1.1"
 flask_apscheduler = "^1.11.0"
-requests = "^2.22.0"
 tinydb = "^4.3.0"
+Flask = "^1.1.2"
+peewee = "^3.14.0"
+requests = "^2.25.1"
 
 [tool.poetry.dev-dependencies]
-pytest = "^5.2"
-black = {version = "^19.10b0", allow-prereleases = true}
 rope = "^0.16.0"
 mypy = "^0.790"
+flake8-black = "^0.2.1"
+black = "^20.8b1"
+pytest = "^6.2.1"
 
 [build-system]
 requires = ["poetry>=0.12"]