Update Dockerfile

Dockerfile

@@ -71,11 +71,18 @@ RUN curl -LO https://go.dev/dl/go1.23.0.linux-amd64.tar.gz \
 # Node.js + Java + .NET
 # -----------------------------
 RUN apt-fast update && apt-fast install -y openjdk-17-jdk
-RUN wget https://packages.microsoft.com/config/ubuntu/24.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
-    && dpkg -i packages-microsoft-prod.deb \
-    && rm packages-microsoft-prod.deb \
-    && apt-fast update \
-    && apt-fast install -y dotnet-sdk-8.0
+
+# Install Microsoft package signing key
+RUN wget https://packages.microsoft.com/keys/microsoft.asc -O /tmp/microsoft.asc \
+    && gpg --dearmor /tmp/microsoft.asc \
+        > /usr/share/keyrings/microsoft.gpg
+
+# Register the new APT v2 repository
+RUN echo "deb [arch=amd64 signed-by=/usr/share/keyrings/microsoft.gpg] https://packages.microsoft.com/ubuntu/24.04/prod noble main" \
+    > /etc/apt/sources.list.d/microsoft-prod.list
+
+# Install .NET SDK
+RUN apt-fast update && apt-fast install -y dotnet-sdk-8.0
 
 # Yarn + Pnpm build tools
 RUN npm install -g yarn pnpm