[dotnet] - remove ubuntu:noble's ubuntu user capturing 1000 uid & gid

src/dotnet/.devcontainer/Dockerfile

@@ -2,6 +2,15 @@ ARG VARIANT=9.0-bookworm-slim
 FROM mcr.microsoft.com/dotnet/sdk:${VARIANT}
 ENV PATH $PATH:/home/vscode/.dotnet:/home/vscode/.dotnet/tools
 
+ARG VARIANT
+RUN if [ "${VARIANT#*noble}" != "$VARIANT"  ]; then \
+        if id "ubuntu" &>/dev/null; then \
+            echo "Deleting user 'ubuntu'  for $VARIANT" && userdel -f -r ubuntu || echo "Failed to delete ubuntu user for $VARIANT"; \
+        else \
+            echo "User 'ubuntu' does not exist for $VARIANT"; \ 
+        fi; \
+    fi
+
 # clear this environment variable so xml docs from NuGet packages are unpackaged. The default dotnet/sdk image sets it to 'skip'.
 # see https://github.com/dotnet/dotnet-docker/issues/2790
 ENV NUGET_XMLDOC_MODE=

src/dotnet/.devcontainer/devcontainer.json

@@ -7,7 +7,9 @@
         "ghcr.io/devcontainers/features/common-utils:2": {
             "installZsh": "true",
             "username": "vscode",
-            "upgradePackages": "true"
+            "upgradePackages": "true",
+			"userUid": "1000",
+			"userGid": "1000"
         },
         "ghcr.io/devcontainers/features/node:1": {
             "version": "none"