Update mcr.microsoft.com/dotnet/sdk:9.0.303-noble Docker digest to 14fad15 (#397)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.devcontainer/Dockerfile

@@ -1,5 +1,5 @@
 # Refer to https://hub.docker.com/_/microsoft-dotnet-sdk for available versions
-FROM mcr.microsoft.com/dotnet/sdk:9.0.303-noble@sha256:a990afa820aa77df1cc3a7eaf471eb7cddf5f8233d739297400e0ce7ff0762bd
+FROM mcr.microsoft.com/dotnet/sdk:9.0.303-noble@sha256:14fad15702d25fec7ff1532b762abd323fc7549c9b8a713b5871b88dc989053d
 
 # Installing mono makes `dotnet test` work without errors even for net472.
 # But installing it takes a long time, so it's excluded by default.