Merge branch 'python39' into 'main'

transition to python/3.9

See merge request bec/xtreme-bec!2

deployment/deploy.sh

@@ -4,7 +4,7 @@
 # BEAMLINE_REPO=gitlab.psi.ch:bec/csaxs-bec.git
 # git clone git@$BEAMLINE_REPO
 
-module add psi-python38/2020.11
+module add psi-python39/2021.11
 
 # start redis
 docker run --network=host --name redis-bec -d redis
@@ -25,4 +25,3 @@ source ./bin/install_bec_dev.sh
 cd ../
 # start the BEC server
 bec-server start --config ./xtreme-bec/deployment/bec-server-config.yaml
-

setup.cfg

@@ -15,7 +15,7 @@ classifiers =
 package_dir =
     = .
 packages = find:
-python_requires = >=3.8
+python_requires = >=3.9
 
 [options.packages.find]
 where = .