MAINT: stats.boltzmann: correct _shape_info typo (#16752)
MAINT: stats.boltzmann: correct _shape_info typo (#16752)

* MAINT: stats.boltzmann: correct _shape_info typo
WarrenWeckesser/scipy,Stefan-Endres/scipy,anntzer/scipy,WarrenWeckesser/scipy,mdhaber/scipy,ilayn/scipy,endolith/scipy,mdhaber/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,ilayn/scipy,andyfaff/scipy,ilayn/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,andyfaff/scipy,perimosocordiae/scipy,Stefan-Endres/scipy,rgommers/scipy,scipy/scipy,ilayn/scipy,anntzer/scipy,andyfaff/scipy,scipy/scipy,rgommers/scipy,anntzer/scipy,andyfaff/scipy,Stefan-Endres/scipy,rgommers/scipy,Stefan-Endres/scipy,mdhaber/scipy,andyfaff/scipy,mdhaber/scipy,endolith/scipy,anntzer/scipy,perimosocordiae/scipy,ilayn/scipy,WarrenWeckesser/scipy,anntzer/scipy,endolith/scipy,scipy/scipy,endolith/scipy,WarrenWeckesser/scipy,mdhaber/scipy,scipy/scipy,scipy/scipy,endolith/scipy,anntzer/scipy,rgommers/scipy,rgommers/scipy,andyfaff/scipy,mdhaber/scipy,scipy/scipy,endolith/scipy,ilayn/scipy,perimosocordiae/scipy,perimosocordiae/scipy,Stefan-Endres/scipy