Merge branch 'renovate/docker-20.x' into 'develop'

Update docker Docker tag to v20.10.22

See merge request soapbox-pub/soapbox!2058

.gitlab-ci.yml

@@ -146,9 +146,9 @@ pages:
 
 docker:
   stage: deploy
-  image: docker:20.10.17
+  image: docker:20.10.22
   services:
-    - docker:20.10.17-dind
+    - docker:20.10.22-dind
   tags:
     - dind
   # https://medium.com/devops-with-valentine/how-to-build-a-docker-image-and-push-it-to-the-gitlab-container-registry-from-a-gitlab-ci-pipeline-acac0d1f26df