chore(deps): update rabbitmq docker tag to v4.2.1

Author: renovate[bot]

.dev/compose.backbone.yml

@@ -109,7 +109,7 @@ services:
   rabbitmq:
     container_name: bkb-rabbitmq
     hostname: rabbitmq
-    image: rabbitmq:4.2.0-alpine@sha256:32962eea9bf99928c2fc541a7defb78c7feca9df0434c5dfb7b539d61e1af524
+    image: rabbitmq:4.2.1-alpine@sha256:36c5153c3d4042b1a9074f89ea67afb2d7a6025621125cde69b7220fc09dfc42
 
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