Update Dockerfile

Dockerfile

@@ -81,6 +81,15 @@ RUN JULIA_VERSION=1.11.3 \
 # -----------------------------
 # Scala + sbt
 # -----------------------------
+# Install dependencies
+RUN apt-get update && apt-get install -y curl gnupg software-properties-common apt-transport-https && rm -rf /var/lib/apt/lists/*
+
+# Add SBT repository and key
+RUN curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x99E82A75642AC823" | gpg --dearmor | tee /usr/share/keyrings/sbt.gpg > /dev/null \
+    && echo "deb [signed-by=/usr/share/keyrings/sbt.gpg] https://repo.scala-sbt.org/scalasbt/debian all main" | tee /etc/apt/sources.list.d/sbt.list \
+    && echo "deb [signed-by=/usr/share/keyrings/sbt.gpg] https://repo.scala-sbt.org/scalasbt/debian /" | tee -a /etc/apt/sources.list.d/sbt.list
+
+# Install Scala + SBT
 RUN apt-get update && apt-get install -y scala sbt && rm -rf /var/lib/apt/lists/*
 
 # -----------------------------