Max version for esmpy and python

Got esmpy >=8.4 which does not work with esmvaltool 2.4
The esmpy < 8.4 needs python <3.11

Author: sverhoeven

roles/ewatercycle/templates/environment.yml.j2

@@ -5,12 +5,12 @@ channels:
   - defaults
 dependencies:
   # TODO pin versions for reproducibility. Use `conda env export` and `pip list` to get versions
-  - python>=3.7
+  - python>=3.7,<3.11
   - subversion # for ewatercycle.parameter_sets
   - esmvaltool-python==2.4.0
   # Pin esmpy so we dont get forced to run all parallel tasks on single cpu
   # Can be removed once https://github.com/ESMValGroup/ESMValCore/issues/1208 is resolved.
-  - esmpy!=8.1.0
+  - esmpy!=8.1.0,<8.4
   # Line above are copy from https://github.com/eWaterCycle/ewatercycle/blob/main/environment.yml
   - ansible
   - pip: