Fix PyENV nt working due to missing export.

zsh/exports/95-pyenv.zsh

@@ -5,5 +5,6 @@ if [ "${USE_PYENV}" -eq 0 ]; then
     return
 fi
 
+export PYENV_ROOT="${PYENV_PATH}"
 export PATH="${PYENV_PATH}/bin:$PATH"
-eval "$(pyenv init -)"
+eval "$(pyenv init -)"