gitlab: Sync sidekiq service to upstream

Like for af0c5b11

    $ git diff 8-7-stable 8-8-stable --
            files/gitlab-cookbooks/gitlab/templates/default/sv-sidekiq-run.erb

is empty.

software/gitlab/instance-gitlab.cfg.in

@@ -627,7 +627,7 @@ log     = ${sidekiq-dir:log}
 # NOTE see queue list here:
 # https://gitlab.com/gitlab-org/gitlab-ce/blob/master/Procfile
 # https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-cookbooks/gitlab/templates/default/sv-sidekiq-run.erb
-# (last updated for omnibus-gitlab 8.7.9+ce.1-0-gf589ad7)
+# (last updated for omnibus-gitlab 8.8.9+ce.0-g25376053)
 [service-sidekiq]
 recipe  = slapos.cookbook:wrapper
 wrapper-path    = ${directory:service}/sidekiq

software/gitlab/software.cfg

@@ -248,7 +248,7 @@ md5sum  = 176939a6428a7aca4767a36421b0af2b
 
 [instance-gitlab.cfg.in]
 <= download-file
-md5sum  = ba83f01fd7a313b984766c50d6e48e54
+md5sum  = 2cc8f5b4cd5f09d4630d0390305c96ad
 
 [macrolib.cfg.in]
 <= download-file