[MRG] Listed valid metrics in neighbors.rst (#19379)
[MRG] Listed valid metrics in neighbors.rst (#19379)


Co-authored-by: Julien Jerphanion <46f1a0bd5592a2f9244ca321b129902a06b53e03@jjerphan.xyz>
Co-authored-by: Thomas J. Fan <5e8796a332fafc9c261437cd1787ae2709a896a7@gmail.com>
Co-authored-by: Chiara Marmo <fae0564e6c67e3b55d8e0653c84ab87c92b2657f@users.noreply.github.com>
betatim/scikit-learn,ivannz/scikit-learn,amueller/scikit-learn,saiwing-yeung/scikit-learn,betatim/scikit-learn,ivannz/scikit-learn,scikit-learn/scikit-learn,jakirkham/scikit-learn,sergeyf/scikit-learn,vinayak-mehta/scikit-learn,AlexandreAbraham/scikit-learn,AlexandreAbraham/scikit-learn,saiwing-yeung/scikit-learn,manhhomienbienthuy/scikit-learn,anntzer/scikit-learn,kevin-intel/scikit-learn,betatim/scikit-learn,TomDLT/scikit-learn,amueller/scikit-learn,shyamalschandra/scikit-learn,lesteve/scikit-learn,espg/scikit-learn,scikit-learn/scikit-learn,scikit-learn/scikit-learn,lesteve/scikit-learn,TomDLT/scikit-learn,manhhomienbienthuy/scikit-learn,AlexandreAbraham/scikit-learn,huzq/scikit-learn,ivannz/scikit-learn,TomDLT/scikit-learn,saiwing-yeung/scikit-learn,sergeyf/scikit-learn,lesteve/scikit-learn,jakirkham/scikit-learn,scikit-learn/scikit-learn,amueller/scikit-learn,lesteve/scikit-learn,anntzer/scikit-learn,anntzer/scikit-learn,vinayak-mehta/scikit-learn,ivannz/scikit-learn,TomDLT/scikit-learn,jakirkham/scikit-learn,espg/scikit-learn,betatim/scikit-learn,AlexandreAbraham/scikit-learn,huzq/scikit-learn,kevin-intel/scikit-learn,shyamalschandra/scikit-learn,sergeyf/scikit-learn,espg/scikit-learn,huzq/scikit-learn,amueller/scikit-learn,sergeyf/scikit-learn,vinayak-mehta/scikit-learn,kevin-intel/scikit-learn,manhhomienbienthuy/scikit-learn,espg/scikit-learn,manhhomienbienthuy/scikit-learn,saiwing-yeung/scikit-learn,huzq/scikit-learn,vinayak-mehta/scikit-learn,shyamalschandra/scikit-learn,shyamalschandra/scikit-learn,kevin-intel/scikit-learn,anntzer/scikit-learn,jakirkham/scikit-learn