Polymake.jl 0.8.1 released

Today Polymake.jl 0.8.1 has been released.

Diff since v0.8.0

Closed issues:

• InexactError (#400)

Merged pull requests:

• compat: allow Mongoc.jl 0.7 (#370) (@benlorenz)
• CI: add ubuntu2204, add workflow_dispatch (#401) (@benlorenz)
• Tiny allocations (#402) (@alexej-jordan)
• Add tests for Array<Pair<Array, Array>>. (#404) (@lkastner)
• Improve SparseVector (scalar multiplication) (#405) (@alexej-jordan)
• CI: update some actions to latest versions (#406) (@fingolfin)
• bump to 0.8.1, bump libpolymake-julia compat (#407) (@benlorenz)