Reload zsh

* This also fixes the following error:

    mac: line 159: /Users/runner/.zshrc: No such file or directory

Author: dskecse

mac

@@ -156,7 +156,8 @@ if [ ! -d "$HOME/.rubies" ]; then
   echo "$ruby_version" > "$HOME/.ruby-version"
   # https://batsov.com/articles/2022/09/15/reload-zsh-configuration/
   # shellcheck disable=SC1091
-  . "$HOME/.zshrc"
+  # . "$HOME/.zshrc"
+  exec zsh -l
   # After installing new Rubies, one must restart the shell before chruby can recognize them.
   # https://github.com/postmodern/chruby#rubies-1
   # chruby "$ruby_version" # won't work, only sets shell's $RUBY_VERSION to default Ruby