replace fish by bash

Author: quachpas

.github/workflows/test.yml

@@ -49,5 +49,5 @@ jobs:
           typst --version
       - name: Build docs
         run: | # make sure docs build without errors or warnings
-          find docs/*.typ -type f | xargs -I {} fish -c 'echo ------ Compiling $argv[1] && time {{typst}} compile --root . $argv[1] docs/assets/$(basename $argv[1] .typ).png' {}
+          find docs/*.typ -type f | xargs -I {} bash -c 'echo ------ Compiling $argv[1] && time {{typst}} compile --root . $argv[1] docs/assets/$(basename $argv[1] .typ).png' {}