Fix docker build

Dockerfile

@@ -1,15 +1,17 @@
 FROM eclipse-temurin:21-jammy
 MAINTAINER Richard Hull <rm_hull@yahoo.co.uk>
 
-ARG SCALA_VERSION=2.13
+ARG SCALA_VERSION=2.12
 RUN mkdir -p /usr/src/app
 WORKDIR /usr/src/app
 COPY . /usr/src/app
 
 RUN apt-get update && \
-  apt-get install -y gnupg && \
-  echo "deb https://dl.bintray.com/sbt/debian /" | tee -a /etc/apt/sources.list.d/sbt.list && \
-  apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2EE0EA64E40A89B84B2DF73499E82A75642AC823 && \
+  apt-get install -y apt-transport-https curl gnupg && \
+  echo "deb https://repo.scala-sbt.org/scalasbt/debian all main" | tee /etc/apt/sources.list.d/sbt.list && \
+  echo "deb https://repo.scala-sbt.org/scalasbt/debian /" | tee /etc/apt/sources.list.d/sbt_old.list && \
+  curl -sL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x2EE0EA64E40A89B84B2DF73499E82A75642AC823" | gpg --no-default-keyring --keyring gnupg-ring:/etc/apt/trusted.gpg.d/scalasbt-release.gpg --import && \
+  chmod 644 /etc/apt/trusted.gpg.d/scalasbt-release.gpg && \
   apt-get update && \
   apt-get install -y sbt && \
   sbt web/assembly && \

build.sbt

@@ -79,7 +79,7 @@ lazy val web = (project in file("web"))
       "com.typesafe.akka" %% "akka-stream" % "2.8.0",
       "com.typesafe.akka" %% "akka-actor" % "2.8.0",
       "com.typesafe.akka" %% "akka-slf4j" % "2.8.0",
-      "ch.qos.logback" % "logback-classic" % "1.4.7"
+      "ch.qos.logback" % "logback-core" % "1.4.7"
     ),
     Assets / WebKeys.packagePrefix := "public/",
     Runtime / managedClasspath += (Assets / packageBin).value