v0.17.0

Singular v0.17.0

Diff since v0.16.0

Closed issues:

• Precompiling failure for Singular (#618)

Merged pull requests:

• Remove redundant isequal methods causing invalidations (#616) (@fingolfin)
• CompatHelper: bump compat for CxxWrap to 0.13, (keep existing compat) (#617) (@github-actions[bot])
• do not import lead from AbstractAlgebra (#619) (@ThomasBreuer)
• Adapt to the big renaming (#621) (@fingolfin)
• CI: test on Julia 1.8 & 1.9, reduce macOS jobs (#624) (@fingolfin)