Merge branch 'gy-review-perf-update-docker' into 'master'

Switch review-performance to use latest SiteSpeed

Closes #251083

See merge request gitlab-org/gitlab!42709

.gitlab/ci/review.gitlab-ci.yml

@@ -174,7 +174,7 @@ review-performance:
     - .default-retry
     - .review:rules:review-performance
   image:
-    name: sitespeedio/sitespeed.io:6.3.1
+    name: sitespeedio/sitespeed.io
     entrypoint: [""]
   stage: qa
   # This is needed so that manual jobs with needs don't block the pipeline.