feat: add support for python 3.11

Makefile

@@ -65,7 +65,7 @@ install-flexmeasures:
 	pip install -e .
 
 install-pip-tools:
-	pip3 install -q "pip-tools>=6.4"
+	pip3 install -q "pip-tools>=7.0"
 
 install-docs-dependencies:
 	pip install -r requirements/docs.txt

requirements/app.in

@@ -16,8 +16,8 @@ humanize
 psycopg2-binary
 bcrypt
 pytz
-# limit the numpy version to make it compatible with numba==0.56.4, which timely-beliefs >=1.18 depends on (library sktime).
-numpy<1.24
+# limit the numpy version to make it compatible with python 3.8, which timely-beliefs >=1.18 depends on (library sktime).
+numpy<1.25
 isodate
 click
 click-default-group
@@ -67,4 +67,4 @@ Flask-SQLAlchemy>=2.4.3,<3
 # flask should be after all the flask plugins, because setup might find they ARE flask
 # <2.3: https://github.com/Parallels/rq-dashboard/issues/417 and https://github.com/FlexMeasures/flexmeasures/issues/754 and flask-login 0.6.1 not compatible
 flask>=1.0, <=2.1.2
-werkzeug<=2.1
+werkzeug<=2.1

setup.py

@@ -53,6 +53,7 @@ def load_requirements(use_case):
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Framework :: Flask",
         "Development Status :: 5 - Production/Stable",
         "License :: OSI Approved :: Apache Software License",