chore(deps): update gitlab/gitlab-ee docker tag to v16

renovate[bot] · TimKnight-DWP · commit 9973148561f6 · 2024-03-04T12:25:31.000Z
diff --git a/tests/functional/fixtures/.env b/tests/functional/fixtures/.env
@@ -1,2 +1,2 @@
 GITLAB_IMAGE=gitlab/gitlab-ee
-GITLAB_TAG=15.4.0-ee.0
+GITLAB_TAG=16.8.1-ee.0

Original file line number	Diff line number	Diff line change
`@@ -1,2 +1,2 @@`
`1`	`1`	`GITLAB_IMAGE=gitlab/gitlab-ee`
`2`		`-GITLAB_TAG=15.4.0-ee.0`
	`2`	`+GITLAB_TAG=16.8.1-ee.0`