chore(deps): update docker:29.4.0-dind docker digest to a6dd532 (#1512)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

kubernetes/apps/actions-runner/runners/helmrelease.yaml

@@ -59,7 +59,7 @@ spec:
               mountPath: /run/docker
               readOnly: true
         - name: dind
-          image: docker:29.4.0-dind@sha256:f80c26212befc1c1988b529495532c6b9180d9b1dab1611f4a1efbe9da8ec821
+          image: docker:29.4.0-dind@sha256:a6dd5322747a95cd8e3207bd8d415a8fd20ec34e9c00f06dc019cbd912013489
           args:
             - dockerd
             - --host=unix:///run/docker/docker.sock