Hi, and thank you for your interest!
yast-sshd is being translated using Weblate, a web tool designed to ease translating for both developers and translators.
Translation project for yast-sshd into Sinhala currently contains 46 strings for translation and is 0.0% complete.
If you would like to contribute to translation of yast-sshd, you need to register on this server.
Once you have activated your account just proceed to the translation section.