Update grafana/tempo:latest Docker digest to d909206 (#70)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| grafana/tempo | digest | `184dc20` -> `d909206` |

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### Configuration

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Reviewed-on: #70
Co-authored-by: Renovate Bot <renovate-bot@valverde.cloud>
Co-committed-by: Renovate Bot <renovate-bot@valverde.cloud>

compose.yml

@@ -48,7 +48,7 @@ services:
 
   tempo:
     <<: *service-base
-    image: grafana/tempo:latest@sha256:184dc2013281d4a3bbf6e3fe445fe478f7a6dbeb1d825fbd2ac2cd28417760b7
+    image: grafana/tempo:latest@sha256:d9092067ae53383bb41b254f8a3edaa02c3f1c659c8775339064f5aa6e140fc4
     command: [-config.file=/etc/tempo.yaml]
     volumes:
       - ./telemetry/tempo.yaml:/etc/tempo.yaml