add radian-verse-zsh

Author: mattocci27

.github/workflows/update.yml

@@ -52,5 +52,6 @@ jobs:
         run: |
           docker buildx bake -f bakefiles/bakefile.json --push radian
           docker buildx bake -f bakefiles/bakefile.json --push radian-verse
+          docker buildx bake -f bakefiles/bakefile.json --push radian-verse-zsh
           docker buildx bake -f bakefiles/bakefile.json --push cmdstan-verse
           docker buildx bake -f bakefiles/bakefile.json --push cmdstan-verse-zsh