Make setup work for any git 2.* present in PPA.

Fix #222

Author: cirosantilli

setup

@@ -17,7 +17,7 @@ if [ -f /.dockerenv ]; then
   apt install -y software-properties-common
   add-apt-repository -y ppa:git-core/ppa
   $sudo apt update
-  git='git=1:2.36.*'
+  git='git=1:2.*'
 else
   git=git
 fi