Fix metrics

Fix metric names.

Author: martincostello

docker/docker-compose-aspnetcore/http/oats.http-get.yaml

@@ -10,5 +10,5 @@ expected:
           attributes:
             http.request.method: GET
   metrics:
-    - promql: http_client_request_duration_count{http_request_method="GET", http_response_status_code="200"}
+    - promql: http_client_request_duration_seconds_count{http_request_method="GET", http_response_status_code="200"}
       value: '>= 0'

docker/docker-compose-aspnetcore/http/oats.http-geterror.yaml

@@ -11,5 +11,5 @@ expected:
             error.type: '500'
             http.request.method: GET
   metrics:
-    - promql: http_client_request_duration_count{}
+    - promql: http_client_request_duration_seconds_count{}
       value: '>= 0'