fix(otel-ecs-fargate): map legacy http.status_code to http.response.status_code in semconv

The ECS Fargate example config is hand-maintained and does not consume the
opentelemetry-collector helm chart, so the chart-level semconv fix (chart
0.135.2, bumped everywhere else via #973) does not reach it. Mirror the same
mapping so span metrics carry the status code for spans using the old HTTP
semantic convention.

Author: NimrodAvni78

otel-ecs-fargate/CHANGELOG.md

@@ -8,6 +8,10 @@
 
 <!-- * [Update/Bug fix] message that describes the changes that you apply -->
 
+### 1.1.1 / 2026-07-21
+
+* [Bug fix] Map the legacy `http.status_code` attribute to `http.response.status_code` in the `semconv` transform so span metrics carry the status code for spans using the old HTTP semantic convention.
+
 ### 1.1.0 / 2026-06-30
 
 * [UPDATE] Use `otlp` v1.10.0 for profiles ingestion

otel-ecs-fargate/config.yaml

@@ -555,6 +555,8 @@ processors:
       statements:
       - set(attributes["http.method"], attributes["http.request.method"]) where attributes["http.request.method"]
         != nil
+      - set(attributes["http.response.status_code"], attributes["http.status_code"]) where attributes["http.response.status_code"]
+        == nil and attributes["http.status_code"] != nil
   transform/spanmetrics:
     error_mode: silent
     metric_statements: