doc: ci-fairy: fix build doc complain

doc/ci-fairy.rst:387: WARNING: Error in "code-block" directive:
maximum 1 argument(s) allowed, 36 supplied.

This resulted in the following block code to not be shown in the
generated output file.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
16 jobs for master in 14 minutes and 6 seconds (queued for 5 seconds)
Child pipeline (parent) latest
Status Job ID Name Coverage
  Debian Container Build
passed #8143845
aarch64
debian:buster@container-build@aarch64

00:01:09

passed #8143834
debian:buster@container-build@x86_64

00:01:20

passed #8143851
kvm
debian:buster@qemu-build@x86_64

00:12:43

passed #8143838
debian@cache-container-build@x86_64

00:01:20

passed #8143859
debian:sid@container-build@x86_64

00:01:11

passed #8143864
debian:stretch@container-build@x86_64

00:01:12

 
  Debian Check
passed #8143891
check labels debian@x86_64:buster

00:00:14

passed #8143875
debian:buster@base-image@x86_64

00:01:00

passed #8143882
aarch64
debian:buster@check@aarch64

00:00:15

passed #8143871
debian:buster@check@x86_64

00:00:19

passed #8143884
kvm
debian:buster@qemu-check@x86_64

00:01:22

passed #8143878
debian@cache-check@x86_64

00:00:11

passed #8143896
debian:sid@check@x86_64

00:00:17

passed #8143898
debian:stretch@check@x86_64

00:00:24

passed #8143888
do not rebuild debian:buster@container-build@x86_64

00:00:16

passed #8143893
pull upstream debian:buster@container-build@x86_64

00:00:29