Upgrade SymPy Version & Extend CI

• Raise SymPy upper limit to 1.12.1
• Introduce nightly tests against sympy pre-releases

added infrastructure label

requested review from @holzer

assigned to @da15siwa

approved this merge request

enabled an automatic merge when the pipeline for 35979bb2 succeeds

added 1 commit

• a56a807c - remove debug code from test file

Compare with previous version

enabled an automatic merge when the pipeline for a56a807c succeeds

added 1 commit

• eddc6762 - attempt to fix remaining test failures

Compare with previous version

requested review from @holzer and removed approval

approved this merge request

merged

mentioned in commit 03e825ce

mentioned in merge request !170 (merged)