update BP images

Author: NachoEchevarria

.gitlab/benchmarks/dsm-throughput.yml

@@ -1,6 +1,6 @@
 variables:
   DSM_THROUGHPUT_CI_IMAGE: 486234852809.dkr.ecr.us-east-1.amazonaws.com/ci/benchmarking-platform:dd-trace-dotnet-dsm
-  MACROBENCHMARKS_CI_IMAGE: 486234852809.dkr.ecr.us-east-1.amazonaws.com/ci/benchmarking-platform:dotnet-throughput-3
+  MACROBENCHMARKS_CI_IMAGE: 486234852809.dkr.ecr.us-east-1.amazonaws.com/ci/benchmarking-platform:dotnet-throughput-4
 
 stages:
   - check-azure-pipeline

.gitlab/benchmarks/macrobenchmarks.yml

@@ -13,7 +13,7 @@ stages:
   - benchmarks-win
 
 variables:
-  MACROBENCHMARKS_CI_IMAGE: 486234852809.dkr.ecr.us-east-1.amazonaws.com/ci/benchmarking-platform:dotnet-throughput-3
+  MACROBENCHMARKS_CI_IMAGE: 486234852809.dkr.ecr.us-east-1.amazonaws.com/ci/benchmarking-platform:dotnet-throughput-4
 
 check_azure_pipeline:
   stage: check-azure-pipeline