[PATCH] gitlab-ci: Update comment about the Dockerfile

[Joel Stanley]

It's found in the u-boot tree now.

Signed-off-by: Joel Stanley <joel at jms.id.au>
---
 .gitlab-ci.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5592862f74b8..cebd76d050b6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0+
 
-# Grab our configured image.  The source for this is found at:
-# https://source.denx.de/u-boot/gitlab-ci-runner
+# Grab our configured image.  The source for this is found
+# in the u-boot tree at tools/docker/Dockerfile
 image: trini/u-boot-gitlab-ci-runner:jammy-20220801-09Aug2022
 
 # We run some tests in different order, to catch some failures quicker.
-- 
2.35.1