Corrige imagen de construcción, baja versión mvn

FROM registry.gitlab.com/redmic-project/docker/kafka-connector-builder:dev-latest AS builder

FROM registry.gitlab.com/redmic-project/docker/kafka-connector-builder:latest AS builder

FROM maven:3-jdk-8

FROM maven:3.5.2-jdk-8

COPY --from=builder /root/.m2 /root/.m2

RUN ls /root/.m2/repository

RUN mkdir -p /build

COPY pom.xml .

COPY src ./src

COPY pom.xml /build

COPY src /build/src

WORKDIR /build

RUN mvn package