Update changelog for 3.12.10
Update changelog for 3.12.10

cketti/okhttp,yschimke/okhttp,tiarebalbi/okhttp,cketti/okhttp,square/okhttp,cmzy/okhttp,ansman/okhttp,square/okhttp,cketti/okhttp,ansman/okhttp,tiarebalbi/okhttp,ansman/okhttp,ze-pequeno/okhttp,ze-pequeno/okhttp,ze-pequeno/okhttp,yschimke/okhttp,square/okhttp,yschimke/okhttp,tiarebalbi/okhttp,cmzy/okhttp