[REF] odoo110_py37: Fix PYENV_ROOT environment variable

Fix the PYENV_ROOT environment variable

Before

export PYENV_ROOT=/pyenv
export PATH=$PYENV_ROOT/shims:$PYENV_ROOT/bin:$PATH

Notice /pyenv doesn't exists

Now

export PYENV_ROOT=/usr/share/pyenv
export PATH=$PYENV_ROOT/shims:$PYENV_ROOT/bin:$PATH