Pontoon: Update Zulu (zu) localization of Common Voice
Pontoon: Update Zulu (zu) localization of Common Voice

Co-authored-by: zulu1 <f0041a095d75c9d92d6d297ffd5581db3e271323@uliza.org>
Co-authored-by: zulu2 <eeb3cfdfd6b571bba38f3bcce5e52f73fbd56b5a@uliza.org>

common-voice/common-voice,common-voice/common-voice,common-voice/common-voice,common-voice/common-voice