opensc-explorer: allow longer PINs in CHANGE & UNBLOCK
opensc-explorer: allow longer PINs in CHANGE & UNBLOCK

Harmonize the allowed PIN length in CHANGE & UNBLOCK with the one in VERIFY,
making sure they are large enough for OpenPGP, which allows up ro 32 characters,
and giving additional security margin for other cards.

marschap/pkg-opensc,dirkx/OpenSC.tokend,dengert/OpenSC,CardContact/OpenSC,LudovicRousseau/OpenSC,adminmt/OpenSC,marschap/pkg-opensc,germanblanco/OpenSC,martinpaljak/OpenSC,jpki/OpenSC,frankmorgner/OpenSC,financeX/OpenSC,0x7678/myOpenSC,philipWendland/OpenSC,fabled/OpenSC,0x7678/myOpenSC,AktivCo/OpenSC,financeX/OpenSC,mouse07410/OpenSC,tidatida/OpenSC,germanblanco/OpenSC,Jakuje/OpenSC,CardContact/OpenSC,gemini/OpenSC,hongquan/OpenSC-main,dirkx/OpenSC,fabled/OpenSC,UIKit0/OpenSC,fabled/OpenSC,philipWendland/OpenSC,germanblanco/OpenSC,viktorTarasov/OpenSC-SM,0x7678/myOpenSC,marschap/pkg-opensc,0x7678/OpenSC,velter/OpenSC,UIKit0/OpenSC,nmav/OpenSC,mtrojnar/OpenSC,nmav/OpenSC,philipWendland/OpenSC,Jakuje/OpenSC,velter/OpenSC,dirkx/OpenSC,dirkx/OpenSC,financeX/OpenSC,dengert/OpenSC,0x7678/OpenSC,rickyepoderi/OpenSC,metsma/OpenSC,adminmt/OpenSC,adminmt/OpenSC,mouse07410/OpenSC,carlhoerberg/OpenSC,nmav/OpenSC,carlhoerberg/OpenSC,hhonkanen/OpenSC,hhonkanen/OpenSC,fabled/OpenSC,kasparsd/opensc-latvia-id,mouse07410/OpenSC,dirkx/OpenSC.tokend,jpki/OpenSC,martinpaljak/OpenSC,financeX/OpenSC,LudovicRousseau/OpenSC,mtrojnar/OpenSC,rickyepoderi/OpenSC,0x7678/myOpenSC,marschap/pkg-opensc,ieugen/OpenSC,ieugen/OpenSC,ieugen/OpenSC,OpenSC/OpenSC,dirkx/OpenSC.tokend,OpenSC/OpenSC,aobaid/OpenSC,dirkx/OpenSC.tokend,gemini/OpenSC,frankmorgner/OpenSC,carlhoerberg/OpenSC,frankmorgner/OpenSC,dirkx/OpenSC.tokend,velter/OpenSC,ieugen/OpenSC,kasparsd/opensc-latvia-id,tidatida/OpenSC,AktivCo/OpenSC,frankmorgner/OpenSC,OpenSC/OpenSC,tidatida/OpenSC,dengert/OpenSC,metsma/OpenSC,dirkx/OpenSC.tokend,dirkx/OpenSC,viktorTarasov/OpenSC-SM,financeX/OpenSC,l1k/OpenSC,metsma/OpenSC,l1k/OpenSC,martinpaljak/OpenSC,0x7678/OpenSC,hongquan/OpenSC-main,hongquan/OpenSC-main,gemini/OpenSC,0x7678/myOpenSC,jpki/OpenSC,ieugen/OpenSC,dirkx/OpenSC,carlhoerberg/OpenSC,adminmt/OpenSC,Jakuje/OpenSC,carlhoerberg/OpenSC,aobaid/OpenSC,kasparsd/opensc-latvia-id,UIKit0/OpenSC,LudovicRousseau/OpenSC,hhonkanen/OpenSC,aobaid/OpenSC,CardContact/OpenSC,velter/OpenSC,l1k/OpenSC,mtrojnar/OpenSC,kasparsd/opensc-latvia-id,aobaid/OpenSC,viktorTarasov/OpenSC-SM,0x7678/OpenSC,AktivCo/OpenSC,tidatida/OpenSC,Jakuje/OpenSC,rickyepoderi/OpenSC,UIKit0/OpenSC