Update dependency helm/helm to v3.12.0 (#172)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Pascal Berger <[email protected]>

Dockerfile

@@ -17,7 +17,7 @@ ENV GNUPG_VERSION=2.2.27-2+deb11u2
 # renovate: datasource=github-tags depName=kubernetes/kubernetes extractVersion=^v(?<version>.*)$
 ENV KUBE_VERSION=1.27.1
 # renovate: datasource=github-tags depName=helm/helm extractVersion=^v(?<version>.*)$
-ENV HELM_VERSION=3.11.3
+ENV HELM_VERSION=3.12.0
 
 RUN apt-get update -y && \
   # Install necessary dependencies

README.md

@@ -54,7 +54,7 @@ The following example shows the container used for a deployment step
 | Tag      | Description                                                      | Base Image                                 | Helm   | Kubectl | Size                                                                                                                          |
 |----------|------------------------------------------------------------------|--------------------------------------------|--------|---------|-------------------------------------------------------------------------------------------------------------------------------|
 | latest   | Latest stable release (from `main` branch)                       | swissgrc/azure-pipelines-azurecli:2.47.0   | 3.11.3 | 1.27.0  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-helm/latest?style=flat-square)   |
-| unstable | Latest unstable release (from `develop` branch)                  | swissgrc/azure-pipelines-azurecli:2.48.1   | 3.11.3 | 1.27.1  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-helm/unstable?style=flat-square) |
+| unstable | Latest unstable release (from `develop` branch)                  | swissgrc/azure-pipelines-azurecli:2.48.1   | 3.12.0 | 1.27.1  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-helm/unstable?style=flat-square) |
 | 3.5.1    | [Helm 3.5.1](https://github.com/helm/helm/releases/tag/v3.5.1)   | node:15.8.0-alpine3.11                     | 3.5.1  | 1.20.2  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-helm/3.5.1?style=flat-square)    |
 | 3.9.0    | [Helm 3.9.0](https://github.com/helm/helm/releases/tag/v3.9.0)   | debian:11.3-slim                           | 3.9.0  | 1.24.2  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-helm/3.9.0?style=flat-square)    |
 | 3.9.1    | [Helm 3.9.1](https://github.com/helm/helm/releases/tag/v3.9.1)   | swissgrc/azure-pipelines-azurecli:2.38.0   | 3.9.1  | 1.24.3  | ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/swissgrc/azure-pipelines-helm/3.9.1?style=flat-square)    |