Pigeons v0.4.5

What's Changed

Buffered enzyme, second attempt by @miguelbiron in #261
Clarify n_chains_variational docstring by @miguelbiron in #262
Fix #263 by @alexandrebouchard in #265
Switch macos-latest to macos-13 due to segfault by @miguelbiron in #267
Robustify slicer by @alexandrebouchard in #268
Initialization fixed by @alexandrebouchard in #269
Add missing sampler stat accounting by @alexandrebouchard in #270
Invariance test: switch to 2 indep samples instead of paired design by @miguelbiron in #271
Document gradient, invariance test, ... by @alexandrebouchard in #272

Full Changelog: v0.4.4...v0.4.5