chore(deps): update docker:29.4.0-dind docker digest to a6dd532

Author: renovate[bot]

.gitlab-ci.yml

@@ -23,7 +23,7 @@
   image_semantic-release: &image_semanticrelease 'techneg/ci-semantic-release:v1.2.36@sha256:6d583254c84185ae720c3574219fe6638a87cc943fcab3253bfc25ac31c6ccc5'
   # `services`
   services_docker_dind: &services_docker_dind
-    - 'docker:29.4.0-dind@sha256:f80c26212befc1c1988b529495532c6b9180d9b1dab1611f4a1efbe9da8ec821'
+    - 'docker:29.4.0-dind@sha256:a6dd5322747a95cd8e3207bd8d415a8fd20ec34e9c00f06dc019cbd912013489'
   # yamllint enable rule:line-length
   # `variables`
   # https://forum.gitlab.com/t/gitlab-com-ci-caching-rubygems/5627/3