fix localstack checksum error in ci. aws/aws-sdk-net#3610

Author: nhulston

tracer/test/test-applications/integrations/Samples.AWS.S3/AsyncHelpers.cs

@@ -138,7 +138,7 @@ string content
                 Key = objectKey,
                 UploadId = uploadId,
                 PartNumber = partNumber,
-                InputStream = memoryStream
+                InputStream = memoryStream,
             };
 
             var response = await s3Client.UploadPartAsync(uploadRequest);

tracer/test/test-applications/integrations/Samples.AWS.S3/Properties/launchSettings.json

@@ -3,6 +3,7 @@
     "Samples.AWS.S3": {
       "commandName": "Project",
       "environmentVariables": {
+        "AWS_REQUEST_CHECKSUM_CALCULATION": "WHEN_REQUIRED",
         "COR_ENABLE_PROFILING": "1",
         "COR_PROFILER": "{846F5F1C-F9AE-4B07-969E-05C26BC060D8}",
         "COR_PROFILER_PATH": "$(SolutionDir)shared\\bin\\monitoring-home\\win-x64\\Datadog.Trace.ClrProfiler.Native.dll",

tracer/test/test-applications/integrations/Samples.AWS.S3/SyncHelpers.cs

@@ -141,7 +141,7 @@ string content
                 Key = objectKey,
                 UploadId = uploadId,
                 PartNumber = partNumber,
-                InputStream = memoryStream
+                InputStream = memoryStream,
             };
 
             var response = s3Client.UploadPart(request);