Bump version to 4.0.0.dev2

pyproject.toml

 [tool.poetry]
 name = "AlekSIS-App-Chronos"
-version = "4.0.0.dev1"
+version = "4.0.0.dev2"
 packages = [
     { include = "aleksis" }
 ]
@@ -51,7 +51,7 @@ priority = "supplemental"
 [tool.poetry.dependencies]
 python = "^3.10"
 calendarweek = "^0.5.0"
-aleksis-core = "^4.0.0.dev2"
+aleksis-core = "^4.0.0.dev5"
 aleksis-app-resint = "^4.0.0.dev1"
 aleksis-app-cursus = "^0.1.dev0"