launch_functional_tests: Use $* instead of $1

$1 is only the first parameter thus launch_functional_tests usage was not
clear. Instead we use $*.

Follows a4d71986
3 jobs for feature-s/packageless_docker in 21 seconds (queued for 1 second)
Name Stage Failure
test_server_functional Test Functional
make[1]: Leaving directory '/home/gitlab-runner/builds/d806ed19/0/vidjil/vidjil/germline'
$ make -C browser sha1
make: Entering directory '/home/gitlab-runner/builds/d806ed19/0/vidjil/vidjil/browser'
../tools/ js/git-sha1.js "git_sha1 ="
make: Leaving directory '/home/gitlab-runner/builds/d806ed19/0/vidjil/vidjil/browser'
$ cp -p doc/analysis-example.vidjil browser/
$ docker build --no-cache --build-arg git_branch=$CI_COMMIT_REF_NAME --build-arg build_env=TEST -t "vidjil/server:test" docker/vidjil-server
bash: line 79: docker: command not found
ERROR: Job failed: exit status 1