Update grafana/tempo:latest Docker digest to b1b2ae4 (#27)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| grafana/tempo | digest | `b613f54` -> `b1b2ae4` |

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### Configuration

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Reviewed-on: #27
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:b613f54818081f45e20a6bdb5669f6ae583149a0bdd4a658120f9265ccdfdb39
+    image: grafana/tempo:latest@sha256:b1b2ae473111f0b1c6011ca30dbff2d13cab58acb96864cda0c6d384299adf8a
     command: [-config.file=/etc/tempo.yaml]
     volumes:
       - ./telemetry/tempo.yaml:/etc/tempo.yaml