Bump dotnet/aspnet from 8.0.17 to 8.0.18 in /examples/MicroserviceExample/WebApi (#6376)

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

Author: dependabot[bot]

examples/MicroserviceExample/WebApi/Dockerfile

@@ -9,7 +9,7 @@ WORKDIR /app
 COPY . ./
 RUN dotnet publish ./examples/MicroserviceExample/WebApi -c "${PUBLISH_CONFIGURATION}" -f "${PUBLISH_FRAMEWORK}" -o /out -p:IntegrationBuild=true
 
-FROM mcr.microsoft.com/dotnet/aspnet:8.0.17@sha256:68669af44214899b4a5ff5fa0dd5fc10e7e9d665669a44dcbc1a142a99b2ec5b AS dotnet-aspnet-8.0
+FROM mcr.microsoft.com/dotnet/aspnet:8.0.18@sha256:35095f3e2bf5ab1f0c6953ed1364028343b5aef029932454cf2ce9e9680827d8 AS dotnet-aspnet-8.0
 FROM mcr.microsoft.com/dotnet/aspnet:9.0.5@sha256:d5507d8292fb2469ec0b9913f3cd4bb8d5a014bd6dc00c33fd4c4e7310229f07 AS dotnet-aspnet-9.0
 
 FROM dotnet-aspnet-${SDK_VERSION} AS runtime