redirect test-time-requirements to the main branch of atmos-cloud-sim-uj/PySDM-examples and PyMPDATA (#942)

Author: slayoo

test-time-requirements.txt

@@ -4,7 +4,7 @@ ghapi
 pytest
 
 # note: if cloning both PySDM and PySDM examples, consider "pip install -e"
-PySDM-examples @ git+https://github.com/edejong-caltech/PySDM-examples@3c30fce#egg=PySDM-examples
-PyMPDATA @ git+https://github.com/atmos-cloud-sim-uj/PyMPDATA@e7b73a7#egg=PyMPDATA
+PySDM-examples @ git+https://github.com/atmos-cloud-sim-uj/PySDM-examples@8b694fc#egg=PySDM-examples
+PyMPDATA @ git+https://github.com/atmos-cloud-sim-uj/PyMPDATA@bb4c4b8#egg=PyMPDATA
 
 PyPartMC==0.0.19