Update scala to 2.13.12 and sbt to 1.9.8

Author: MatteoTurri

Dockerfile

@@ -1,7 +1,7 @@
 FROM eclipse-temurin:17.0.9_9-jre-alpine@sha256:cba04f7101096852719a1530feffbb04a232765a8180b083f6182bafc6b3e1d3
 
-ARG SCALA_VERSION=2.12.18
-ARG SBT_VERSION=1.9.7
+ARG SCALA_VERSION=2.13.12
+ARG SBT_VERSION=1.9.8
 ENV SCALA_HOME=/usr/share/scala
 
 RUN apk add --no-cache --virtual=.build-dependencies wget ca-certificates && \