nikhil-sarin/redback: v1.15.2

Added and changed Added astro-otter integration: new transient class constructor, example, and docs (#356) Added SN1998bw spectral template model with extinction function and updated priors (#355) Added optimal time array construction for kilonova models and new two-component model Added reference file regression test for future model stability Added caching for temperature time arrays Updated FINK API to support LSST and ZTF data Added utility function to automate generation of dense time arrays for physics models Fixed missing kappa_gamma and CKM parameters in relevant models Fixed combined model test and CI issues Added magnitude plotter logic to adjust to upper/lower limits (#354) What's Changed astro-otter integration by @nikhil-sarin in https://github.com/nikhil-sarin/redback/pull/356 98bw template by @nellgrab in https://github.com/nikhil-sarin/redback/pull/355 Magnitude plotter fix by @conoromand in https://github.com/nikhil-sarin/redback/pull/354 Full Changelog: https://github.com/nikhil-sarin/redback/compare/v1.15.1...v1.15.2