chore(deps): update grafana/tempo docker tag to v2.9.0

Author: renovate[bot]

examples/example-exemplars-tail-sampling/docker-compose.yaml

@@ -52,7 +52,7 @@ services:
       - --enable-feature=native-histograms
       - --config.file=/prometheus.yaml
   tempo:
-    image: grafana/tempo:2.8.2@sha256:0ef775495967cd5d7a6b2e146b6ea695d624803c8db8349fb8ce4164f719f9b7
+    image: grafana/tempo:2.9.0@sha256:65a5789759435f1ef696f1953258b9bbdb18eb571d5ce711ff812d2e128288a4
     network_mode: host
     volumes:
       - ./config/tempo-config.yaml:/config.yaml