repair ci scripts

2 jobs for master in 7 minutes and 5 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #21073
compiling

00:07:05

failed #21072
compiling

00:01:04

 
Name Stage Failure
failed
compiling Test
pandoc-2.9.2.1/share/man/man1/pandoc.1.gz
pandoc-2.9.2.1/share/man/man1/pandoc-citeproc.1.gz
pandoc-2.9.2.1/bin/
pandoc-2.9.2.1/bin/pandoc
pandoc-2.9.2.1/bin/pandoc-citeproc
bin
share
./do-install-stuff.sh: line 27: python: command not found
ERROR: Job failed: exit code 1