chore(deps): update otel/opentelemetry-collector-contrib docker tag to v0.139.0

Author: renovate[bot]

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

@@ -36,7 +36,7 @@ services:
       - -jar
       - /example-greeting-service.jar
   collector:
-    image: otel/opentelemetry-collector-contrib:0.138.0@sha256:4a951ff0a9772f4fa8e9c7a326434370301b98b2b813933468dcb54aa6a6b5e5
+    image: otel/opentelemetry-collector-contrib:0.139.0@sha256:faf125d656fa47cea568b2f3b4494efd2525083bc75c1e96038bc23f05cd68fd
     network_mode: host
     volumes:
       - ./config/otelcol-config.yaml:/config.yaml

examples/example-exporter-opentelemetry/docker-compose.yaml

@@ -13,7 +13,7 @@ services:
       #- -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=*:5005
       - /example-exporter-opentelemetry.jar
   collector:
-    image: otel/opentelemetry-collector-contrib:0.138.0@sha256:4a951ff0a9772f4fa8e9c7a326434370301b98b2b813933468dcb54aa6a6b5e5
+    image: otel/opentelemetry-collector-contrib:0.139.0@sha256:faf125d656fa47cea568b2f3b4494efd2525083bc75c1e96038bc23f05cd68fd
     network_mode: host
     volumes:
       - ./config/otelcol-config.yaml:/config.yaml