Bump version and AbstractAlgebra and Nemo compats

[lgoettgens]

cc @thofma

[lgoettgens]

Let's see what broke in Hecke

[lgoettgens]

Most errors looks like Nemocas/AbstractAlgebra.jl#1424.
I can make a doctest fix run locally for that. Unless you are already doing that :)

[thofma]

Should be fixed now

[codecov]

Codecov Report

Patch coverage: 87.50% and project coverage change: +0.15% 🎉

Comparison is base (727918f) 74.40% compared to head (1357384) 74.56%.
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1208      +/-   ##
==========================================
+ Coverage   74.40%   74.56%   +0.15%     
==========================================
  Files         346      346              
  Lines      110746   110750       +4     
==========================================
+ Hits        82403    82577     +174     
+ Misses      28343    28173     -170     

Files Changed	Coverage Δ
src/Misc/Matrix.jl	75.49% <ø> (ø)
src/QuadForm/Quad/ZLattices.jl	93.81% <ø> (+0.27%)	⬆️
src/QuadForm/Torsion.jl	91.06% <ø> (+0.11%)	⬆️
src/QuadForm/Types.jl	81.15% <ø> (ø)
src/GrpAb/GrpAbFinGen.jl	81.14% <80.00%> (+0.13%)	⬆️
src/GrpAb/SubgroupEnum.jl	83.87% <100.00%> (+0.07%)	⬆️

... and 35 files with indirect coverage changes

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