more pipenv version updates

Dockerfile.openpilot_base

@@ -56,7 +56,7 @@ RUN pyenv install 3.8.2 && \
     pyenv global 3.8.2 && \
     pyenv rehash && \
     pip install --no-cache-dir --upgrade pip==20.1.1 && \
-    pip install --no-cache-dir pipenv==2018.11.26 && \
+    pip install --no-cache-dir pipenv==2020.8.13 && \
     cd /tmp && \
     pipenv install --system --deploy --dev --clear && \
     pip uninstall -y pipenv

tools/mac_setup.sh

@@ -51,5 +51,5 @@ pyenv global 3.8.2
 pyenv rehash
 eval "$(pyenv init -)" # CI doesn't use .bash_profile, and will use python2.7 if this line isn't here.
 
-pip install pipenv==2018.11.26
+pip install pipenv==2020.8.13
 pipenv install --system --deploy

tools/ubuntu_setup.sh

@@ -87,7 +87,7 @@ pyenv rehash
 # **** in python env ****
 
 # install pipenv
-pip install pipenv==2018.11.26
+pip install pipenv==2020.8.13
 
 # pipenv setup (in openpilot dir)
 pipenv install --dev --system --deploy