NNPDF/nnpdf: Version 4.0.6

This is the last version that uses C++ objects in n3fit or validphys. It is also anticipated to be the last release that utilizes apfel for PDF evolution.

At the same time, it is the first version that includes a pineappl parser. pineappl is expected to become the main provider of theory predictions.

• add ccbar assym basis (#1658) @RoyStegeman
• Change numpy to python for int, float and bool. (#1653) @scarlehoff
• Update docs in vpinterface (#1640) @scarlehoff
• Train on 1-point datasets (#1636) @scarlehoff
• ccbar asymmetry (#1629) @tgiani
• Fix to #1637 (#1638) @scarlehoff
• Simplify MetaModel input handling (#1625) @Zaharid
• Adding filter rule to remove one linearly dependent bin from the CMS 2D top distribution (#1633) @enocera
• Remove additional t0 flags (#1626) @Zaharid
• Add flag for the derivative of thePDF (#1605) @scarlehoff
• Kinetic energy of the pdf (#1606) @scarlehoff
• Fix legend of the replica distribution plot (and experiments_chi2_stats) (#1612) @scarlehoff
• Implemented function to compute asymptotic exponents (#1581) @enocera
• Add t0 chi2 to comparefitsreport (#1613) @RoyStegeman
• Fix overfitmetric in comparefits (#1611) @scarlehoff
• Prevent offset in plot axis values (#1608) @RoyStegeman
• Update fitbot (#1604) @scarlehoff
• Top data fixes (#1602) @enocera
• update overfit metric fit (#1603) @scarlehoff
• update code citation with EPJC info (#1592) @RoyStegeman
• Evaluate only unique xgrids (#1587) @scarlehoff
• Raise an exception for wrongly loaded positivity or integrability datasets (#1591) @scarlehoff
• Add NLO and NNLO sv theories in db (#1589) @andreab1997
• Revert format (#1590) @Zaharid
• Enable positivity/integrability pineappl grids (#1585) @scarlehoff
• Validphys with pineappl rebased to master (#1578) @scarlehoff
• add plotting action for lumi1d per replica (#1580) @RoyStegeman
• Fit with theory covmat with n3fit (#1528) @andreab1997
• Decorrelation models (#1571) @enocera
• Bugfix for kfolds (#1572) @scarlehoff
• Use <fitname>.json by default and deprecate the .fitinfo file. (#1546) @scarlehoff
• [bot] Add conda environment for tag 4.0.5 (#1567) @github-actions

• Add overfit metric to vp (#1573) @RoyStegeman

• Fixed normalised data-theory comparison errors (#1665) @J-M-Moore
• replace depricated np.asscalar with .item() (#1659) @RoyStegeman
• fixed bug following from introduction of parse_fakepdf in config.py (#1654) @comane
• fix default elements for ccbar_asymm basis (#1649) @tgiani
• bufix: use fakepdf to generate pseudodata instead of t0pdfset (#1647) @RoyStegeman
• Fixing the grouping and the thcovmat flag (#1588) @andreab1997
• Fix bugs in closuretest (#1570) @VLTSML26

• Personnel update (#1593) @enocera
• Simplify docs of convolution module (#1569) @Zaharid
• Add note on 4.0.5 release (#1568) @Zaharid

• Separate xgrid and model generation within model trainer (#1644) @scarlehoff