v0.43.2

AbstractAlgebra v0.43.2

Diff since v0.43.1

Merged pull requests:

• add number_of_generators for UniversalPolyRing (#1795) (@SoongNoonien)
• Make addmul! fully generic, add docstrings (#1801) (@fingolfin)
• Avoid redundant bounds checks in is_zero_row and is_zero_column (#1802) (@fingolfin)
• Fix Strassen, add a test (#1803) (@lgoettgens)
• Prefer symbols for VarNames over strings (#1804) (@fingolfin)
• Add daily jobs (#1805) (@HereAround)
• Add is_nothing alias (#1806) (@lgoettgens)
• Adapt alias macro docstring test to nightly changes (#1807) (@lgoettgens)
• Bump version to 0.43.2 (#1810) (@lgoettgens)
• Add divexact!, lcm!, submul! (#1812) (@fingolfin)
• Remove unsafe ops for Rational (#1813) (@fingolfin)