tests: uses docker multi-arch images for dind-sidecar

Signed-off-by: Vincent Demeester <[email protected]>

Author: vdemeester

examples/v1/taskruns/dind-sidecar.yaml

@@ -40,7 +40,7 @@ spec:
         name: dind-certs
 
     sidecars:
-    - image: docker@sha256:74e78208fc18da48ddf8b569abe21563730845c312130bd0f0b059746a7e10f5
+    - image: docker@sha256:0752ca4e936da012c173c119217c0f9599b3b191c1557e53206d5d06d2627580
       name: server
       args:
         - --storage-driver=vfs