Pontoon: Update Siswati (ss) localization of Common Voice
Pontoon: Update Siswati (ss) localization of Common Voice

Co-authored-by: siswati1 <859eda2d0759c5e68b7d8431e786687a2489b9d9@uliza.org>
Co-authored-by: siswati2 <714ce56b37a9d3a31d362e12fa36a1d213cd1753@uliza.org>

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