build: add cron for dependecy chart updates

.github/helm/repositories.yaml

@@ -0,0 +1,46 @@
+apiVersion: v1
+repositories:
+  - name: steadybit-extension-aws
+    url: https://steadybit.github.io/extension-aws
+  - name: steadybit-extension-azure
+    url: https://steadybit.github.io/extension-azure
+  - name: steadybit-extension-container
+    url: https://steadybit.github.io/extension-container
+  - name: steadybit-extension-datadog
+    url: https://steadybit.github.io/extension-datadog
+  - name: steadybit-extension-dynatrace
+    url: https://steadybit.github.io/extension-dynatrace
+  - name: steadybit-extension-gatling
+    url: https://steadybit.github.io/extension-gatling
+  - name: steadybit-extension-gcp
+    url: https://steadybit.github.io/extension-gcp
+  - name: steadybit-extension-host
+    url: https://steadybit.github.io/extension-host
+  - name: steadybit-extension-http
+    url: https://steadybit.github.io/extension-http
+  - name: steadybit-extension-instana
+    url: https://steadybit.github.io/extension-instana
+  - name: steadybit-extension-istio
+    url: https://steadybit.github.io/extension-istio
+  - name: steadybit-extension-jmeter
+    url: https://steadybit.github.io/extension-jmeter
+  - name: steadybit-extension-jvm
+    url: https://steadybit.github.io/extension-jvm
+  - name: steadybit-extension-k6
+    url: https://steadybit.github.io/extension-k6
+  - name: steadybit-extension-kong
+    url: https://steadybit.github.io/extension-kong
+  - name: steadybit-extension-kubernetes
+    url: https://steadybit.github.io/extension-kubernetes
+  - name: steadybit-extension-loadtest
+    url: https://steadybit.github.io/extension-loadtest
+  - name: steadybit-extension-newrelic
+    url: https://steadybit.github.io/extension-newrelic
+  - name: steadybit-extension-postman
+    url: https://steadybit.github.io/extension-postman
+  - name: steadybit-extension-prometheus
+    url: https://steadybit.github.io/extension-prometheus
+  - name: steadybit-extension-stackstate
+    url: https://steadybit.github.io/extension-stackstate
+  - name: postgresql
+    url: https://charts.bitnami.com/bitnami

.github/workflows/update-outpost-dependencies.yml

@@ -0,0 +1,49 @@
+name: Update steadybit-outpost dependencies
+on:
+  workflow_dispatch: {}
+  schedule:
+    - cron: "0 8 * * 1"
+
+env:
+  HELM_REPOSITORY_CONFIG: ${{ github.workspace }}/.github/helm/repositories.yaml
+
+jobs:
+  update-outpost-dependencies:
+    name: Update steadybit-outpost dependencies
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/create-github-app-token@v1
+        id: app-token
+        with:
+          app-id: ${{ vars.GH_APP_STEADYBIT_APP_ID }}
+          private-key: ${{ secrets.GH_APP_STEADYBIT_PRIVATE_KEY }}
+
+      - uses: actions/checkout@v4
+        with:
+          ref: main
+          fetch-depth: 0
+          token: ${{ steps.app-token.outputs.token }}
+
+      - name: Install Helm
+        uses: azure/setup-helm@v3
+        with:
+          version: v3.13.3
+
+      # this commit will effectively cause another run of the workflow which then actually performs the helm chart release
+      - run: |
+          cd charts/steadybit-outpost
+          helm dependency update
+          if git diff --quiet Chart.lock; then
+            echo "No changes in dependencies"
+            exit 0
+          fi
+          
+          npm install -g semver
+          make chart-bump-version CHART="steadybit-outpost"
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+          git commit -am "chore: update helm chart dependencies"
+          git push