Upgrade to Helm v3.15.3 and bookworm

Dockerfile

@@ -1,6 +1,6 @@
-FROM flownative/base:3
+FROM flownative/base:bookworm
 
-ENV HELM_VERSION v3.0.2
+ENV HELM_VERSION v3.15.3
 ENV HELM_HOME=/root/.helm
 
 # We need Git for "helm plugin install"

README.md

@@ -1,7 +1,7 @@
 # Docker Image for the Helm Release Github Action
 
-This is a the actual implementation of the
-[Flownative Github Action for releasing Helm charts](https://github.com/flownative/action-helm-release).
-The actual Github action refers to a pre-built image in its
+This is the actual implementation of the
+[Flownative GitHub Action for releasing Helm charts](https://github.com/flownative/action-helm-release).
+The actual GitHub action refers to a pre-built image in its
 `Dockerfile`, so that the action image does not have to be re-built on
 every use.

entrypoint.sh

@@ -42,4 +42,5 @@ cd "${INPUT_CHARTS_FOLDER}"
 
 helm inspect chart "${INPUT_CHART_NAME}"
 helm package --app-version "${INPUT_APP_VERSION}" --version "${INPUT_CHART_VERSION}" "${INPUT_CHART_NAME}"
-helm cm-push "${INPUT_CHART_NAME}-${INPUT_CHART_VERSION}.tgz" "${INPUT_REPOSITORY_URL}" --username "${INPUT_REPOSITORY_USER}" --password "${INPUT_REPOSITORY_PASSWORD}" --force
+helm repo add --username "${INPUT_REPOSITORY_USER}" --password "${INPUT_REPOSITORY_PASSWORD}" target-repository "${INPUT_REPOSITORY_URL}"
+helm push --force "${INPUT_CHART_NAME}-${INPUT_CHART_VERSION}.tgz" "${INPUT_REPOSITORY_URL}" "${INPUT_REPOSITORY_URL}"