chore(deps): update otel/opentelemetry-collector-contrib docker digest to 13b685d (#1112)

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

Author: renovate[bot]

demo-app/compose.yaml

@@ -1,6 +1,6 @@
 services:
   collector:
-    image: "otel/opentelemetry-collector-contrib@sha256:9c247564e65ca19f97d891cca19a1a8d291ce631b890885b44e3503c5fdb3895"
+    image: "otel/opentelemetry-collector-contrib@sha256:13b685dc9f68fbbb0fce06d3be84e9d70ba5b90085d79dcbd4c4c0d909ee2d6e"
     volumes:
       - ./collector.yaml:/etc/demo-collector.yaml
     entrypoint: ["/otelcol-contrib"]