Merge branch 'master' of https://gitlab.dkrz.de/m300602/pyicon into pyic-slo

ci/requirements_py37.yml

ci/requirements_py38.yml

config_ckdtree/config_ckdtree_atm_r2b4.py

config_ckdtree/config_ckdtree_oce_northpole.py

config_ckdtree/config_ckdtree_oce_smt.py

config_ckdtree/config_ckdtree_oce_smt20km.py

config_ckdtree/config_ckdtree_r2b3_atm_r0030.py

config_ckdtree/config_ckdtree_r2b4_atm_r0013.py

config_ckdtree/config_ckdtree_r2b4_oce_r0003.py

config_ckdtree/config_ckdtree_r2b4_oce_r0004.py

config_ckdtree/config_ckdtree_r2b6_oce_r0003.py

config_ckdtree/config_ckdtree_r2b6_oce_r0004.py

config_ckdtree/config_ckdtree_r2b8_oce_r0004.py

config_ckdtree/config_ckdtree_r2b9_oce_r0004.py

config_ckdtree/config_ckdtree_smt_old.py

config_ckdtree/config_ckdtree_smtwv_oce.py

config_qp/conf-exp.ocean_omip_long_tke_r2b4_20184-QDI.py

config_qp/conf-r2b8.py

config_qp/conf-ruby0.py

config_qp/conf-slo1284_old.py