Resolve "Need at least scipy 1.5.0 for ks_1samp"

Closes #587

See merge request !999

Fix zero spin conversion

See merge request !1002

Resolve "Tutorial has incorrect documentation"

Closes #545

See merge request lscsoft/bilby!994

Remove the KDE proposal check

See merge request !993

Add zeus-mcmc to docker files

See merge request !966

I deleted some redundant spaces and added a priors.pop for mass_ratio

See merge request !997

Add the code spell pre-commit and fix all existing spelling errors

See merge request !996

Allow logtrapzexp to work on a non-uniform grid

See merge request !983

Version 1.1.3 release

See merge request lscsoft/bilby!989

Fix error in Categorical prior and add tests

See merge request lscsoft/bilby!990

Fix MCMC tests

See merge request !985

Add a categorical prior

See merge request !982

Remove the autoburnin causing kombine to fail the CI tests

Closes #585

See merge request !988

bilby/gw/likelihood.py: speed up the spline interpolation in ROQ

See merge request !971

Replace bessel interpolant to scipy function

See merge request !976

Improve checkpoint stats plot

See merge request !977

Add cdf method to PriorDict classes

See merge request !943

Fix typo in sampler documentation

See merge request !986