Pystan: add dependencies

Pystan: add dependencies that we have in the stack so that no conflicting versions are pulled in by pip install

Because pystan pulls in attrs via pip install (notice there is no --no-dep), we get clashing versions between attrs from the stack and what we get in pystan, even though we didn't change pystan version

added test-needed label

Bot test pystan in dev4 please!

🗩 Build queued

added test-dev4-passed label

🗩

Release dev4: SUCCESS

Build ID	Platform	Result
#8498	centos7-gcc11-dbg
#8499	ubuntu20-native-opt
#8500	centos7-clang11-opt
#8501	centos7-gcc8-dbg
#8502	centos7-gcc10-dbg
#8503	centos7-gcc10fp-dbg
#8504	centos7-gcc11-opt
#8505	mac1015-native-opt
#8506	centos7-gcc9-dbg
#8507	centos7-clang11-dbg
#8508	centos9-native-dbg
#8509	centos7-gcc10fp-opt
#8510	centos7-clang10-dbg
#8511	centos7-gcc9-opt
#8512	centos8-gcc10-dbg
#8513	mac11-native-opt
#8514	centos7-clang12-opt
#8515	centos7-gcc8-opt
#8516	centos7-clang10-opt
#8517	centos8-gcc10-opt
#8518	centos7-gcc10-opt
#8519	centos9-native-opt

merged

mentioned in commit 2ff0f42d

added sweep:ignore label