Update java/maven/Dockerfile

Co-authored-by: Oscar Reimer <oscar.reimer@debricked.com>

Author: filip-debricked

java/maven/Dockerfile

@@ -4,7 +4,7 @@ COPY java/common /vulnfunc/java/common
 RUN mvn -f /vulnfunc/java/common --batch-mode --update-snapshots package -DskipTests
 
 FROM maven:3-eclipse-temurin-21-alpine
-RUN apk add zip
+RUN apk add --no-cache zip
 COPY --from=package /vulnfunc/java/common/target/SootWrapper.jar /vulnfunc/java/common/
 COPY java/common/*.sh /vulnfunc/java/common/
 COPY java/maven/*.sh /vulnfunc/java/maven/