Childeric III

This version includes the fast computation of metal matrices as well as some bug-fixes and documentation updates.
All baseline v1 analyses of the 2023 KP6 workshop should be produced with this release.

What's Changed

• changes to picca_cf1d by @Waelthus in #1036
• P1d nan fix by @corentinravoux in #1038
• added fast-metals option to picca_metal_dmat [minor] by @calumgordon in #1039
• Update picca_delta_extraction_configuration_tutorial.ipynb by @p-slash in #1041
• Fast computation of metal dmat using stack of delta [bump minor] by @julienguy in #1040

Full Changelog: v8.1.0...v8.2.0