Bump otel/opentelemetry-collector Docker tag to v0.156.0 (#7502)

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

Author: renovate[bot]

examples/MicroserviceExample/docker-compose.yml

@@ -8,7 +8,7 @@ services:
 # You can choose to configure different visualization backends by modifying the otel-collector-config.yaml file.
 # Alternatively, you can have the services export traces directly to Zipkin by https://github.com/openzipkin-contrib/zipkin-otel.
   otel-collector:
-    image: otel/opentelemetry-collector:0.155.0@sha256:140cdb56eeea12ebc33bb4f7109fd4eef90391933f8d85b33384fcfe1cf040c4
+    image: otel/opentelemetry-collector:0.156.0@sha256:0beba82d63792511591522a8d582904b9a8ae81710357bfcab731607b8b0ffe2
     command: ["--config=/etc/otel-collector-config.yaml"]
     volumes:
       - ./otel-collector-config.yaml:/etc/otel-collector-config.yaml

test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/IntegrationTest/docker-compose.yml

@@ -25,7 +25,7 @@ services:
       "
 
   otel-collector:
-    image: otel/opentelemetry-collector:0.155.0@sha256:140cdb56eeea12ebc33bb4f7109fd4eef90391933f8d85b33384fcfe1cf040c4
+    image: otel/opentelemetry-collector:0.156.0@sha256:0beba82d63792511591522a8d582904b9a8ae81710357bfcab731607b8b0ffe2
     volumes:
       - ./test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/IntegrationTest:/cfg
     command: --config=/cfg/otel-collector-config.yaml