Update openzipkin/zipkin Docker tag to v2.25.2 (#724)

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

Author: renovate[bot]

opentelemetry/docker-compose.otel.yaml

@@ -45,7 +45,7 @@ services:
 
   zipkin:
     container_name: zipkin
-    image: openzipkin/zipkin:2.25.1
+    image: openzipkin/zipkin:2.25.2
     ports:
       - "9411:9411"