Singular.jl 0.22.0 released

Today Singular.jl 0.22.0 has been released.

Diff since v0.21.3

Merged pull requests:

• CI: always test treehash mismatch handling code path (#754) (@fingolfin)
• Chore: Adapt to new AA and Nemo (#756) (@lgoettgens)
• Adapt to number_of_* renaming (#757) (@lgoettgens)
• Enable Aqua piracy tests (#762) (@lgoettgens)

Closed issues:

• output of prune_with_map_projection (#758)
• Adapt residue_ring dispatches introduced here (#759)