macOS: Fix missing pip command issue. (#22924)

* Fixed missing pip command issue.

* add path to openpilot_env.sh for mac

tools/mac_setup.sh

@@ -61,6 +61,7 @@ fi
 
 # install python
 PYENV_PYTHON_VERSION=$(cat $OP_ROOT/.python-version)
+PATH=$HOME/.pyenv/bin:$HOME/.pyenv/shims:$PATH
 pyenv install -s ${PYENV_PYTHON_VERSION}
 pyenv rehash
 eval "$(pyenv init -)"

tools/openpilot_env.sh

@@ -1,8 +1,5 @@
 if [ -z "$OPENPILOT_ENV" ]; then
   export PYTHONPATH="$HOME/openpilot:$PYTHONPATH"
-
-  unamestr=`uname`
-  if [[ "$unamestr" == 'Linux' ]]; then
   export PATH="$HOME/.pyenv/bin:$PATH"
 
   # Pyenv suggests we place the below two lines in .profile before we source
@@ -11,6 +8,9 @@ if [ -z "$OPENPILOT_ENV" ]; then
   # we add the lines here as a workaround.
   # https://github.com/pyenv/pyenv/issues/1906
   export PYENV_ROOT="$HOME/.pyenv"
+
+  unamestr=`uname`
+  if [[ "$unamestr" == 'Linux' ]]; then
     eval "$(pyenv init --path)"
 
     eval "$(pyenv virtualenv-init -)"