ci(gitlab-ci): specify version for dind service image

* for better version awareness

Author: dafyddj

.gitlab-ci.yml

@@ -22,7 +22,7 @@
   image_semantic-release: &image_semanticrelease 'myii/ssf-semantic-release:15.14@sha256:374f588420087517a3cc0235e11293bffd72d7a59da3d98d5e69f014ff2a7761'
   # `services`
   services_docker_dind: &services_docker_dind
-    - 'docker:dind@sha256:3a861ec98623bd6014610291123751dc19e0c6d474ac3b38767771791ac0eb5e'
+    - 'docker:28.1.1-dind@sha256:3a861ec98623bd6014610291123751dc19e0c6d474ac3b38767771791ac0eb5e'
   # yamllint enable rule:line-length
   # `variables`
   # https://forum.gitlab.com/t/gitlab-com-ci-caching-rubygems/5627/3