Fix deploy version and remove unnecessary lines from Dockerfiles

Dockerfile

-#FROM hseeberger/scala-sbt:8u252_1.3.12_2.13.2 AS build
 FROM hseeberger/scala-sbt:11.0.8_1.4.1_2.13.3 as build
-
 ADD . /
 WORKDIR /
 RUN sbt clean
 RUN sbt stage
 
-# Build deployable Docker image
-#FROM openjdk:8-jre-alpine
 FROM amd64/adoptopenjdk:11-jre
 COPY --from=build target/universal/stage /app/
-
-#RUN apk update
-#RUN apk upgrade
-#RUN apk add bash
-#see https://github.com/docker-library/openjdk/issues/289
-#RUN apk add --no-cache nss
-
-
 WORKDIR /app
-CMD ./start.process.sh
+CMD ./start.process.sh
\ No newline at end of file

helm-charts/helm-values/api-oai-prod.yaml

-tag: "latest"
-
 k8sEnvironment: prod
 k8sReplicas: 1
 

helm-charts/helm-values/api-oai-stage.yaml

-tag: "latest"
-
 k8sEnvironment: stage
 k8sReplicas: 1
 

helm-charts/helm-values/api-oai-test.yaml

-tag: "latest"
-
 k8sEnvironment: test
 k8sReplicas: 1
 

helm-charts/values.yaml

 registry: "cr.gitlab.switch.ch"
 image: "memoriav/memobase-2020/services/externalapis/oai"
-tag: placeholder
+tag: "latest"
 
 k8sName: oai
 k8sNamespace: memobase