Fix a typo in the "liber sync" invocation

4 jobs for master in 4 minutes and 51 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build Pkgsrc
passed #11887
build_pkgsrc:buster

00:00:15

 
  Build Pkg
passed #11888
amd64
build_pkg:buster:amd64

00:01:21

passed #11889
arm64
build_pkg:buster:arm64

00:04:18

 
  Upload Pkg
passed #11890
upload_pkg

00:00:17