Do any public schools teach Eubonics?

No, no public schools in the United States teach a course specifically called "Ebonics." While the term "Ebonics" itself is controversial and has been largely abandoned in academic settings, the linguistic features often associated with it – aspects of African American Vernacular English (AAVE) – are sometimes acknowledged and addressed in some schools. This is usually done within the context of literacy programs aimed at supporting students who speak AAVE by helping them to understand the relationship between AAVE and Standard English, and to improve their skills in Standard English for academic success. It's important to emphasize that these programs do not aim to teach "Ebonics" as a separate language, but rather to build on students' existing linguistic knowledge.