Bump dotnet/sdk from e6a5a8d to 57c3bf9 in /test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/IntegrationTest (#6364)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Alan West <[email protected]>

Author: dependabot[bot]

test/OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests/IntegrationTest/Dockerfile

@@ -4,7 +4,7 @@
 
 ARG BUILD_SDK_VERSION=9.0
 ARG TEST_SDK_VERSION=9.0
-FROM mcr.microsoft.com/dotnet/sdk:8.0.411@sha256:e6a5a8d884609907fa8d468b927df765967f6b22f890ce92bd3ae614ca4ae87e AS dotnet-sdk-8.0
+FROM mcr.microsoft.com/dotnet/sdk:8.0.411@sha256:57c3bf930db9ac075c9019b83fdfc77c474b11b874120b84bc97fa65f33662dd AS dotnet-sdk-8.0
 FROM mcr.microsoft.com/dotnet/sdk:9.0.300@sha256:c5b188baf837b0180a14f988815b9cc7a55b836dd6cbe1b6e6523cf3098faaa8 AS dotnet-sdk-9.0
 
 FROM dotnet-sdk-${BUILD_SDK_VERSION} AS build