Upgrade pip before installing compose

scripts/install

@@ -141,7 +141,9 @@ install_docker() {
 
 install_docker_compose() {
   sudo apt-get install --yes python3-pip libffi-dev
-  sudo pip3 install docker-compose
+  # We need to upgrade pip (via itself) because old pip versions in some OS repos fail to install deps.
+  python3 -m pip install --upgrade pip
+  sudo python3 -m pip install docker-compose
 }
 
 install_umbrel() {