ci: Configure Renovate

.github/renovate.json5

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+{
+  extends: [
+    "github>bjw-s/renovate-config",
+    "github>bjw-s/renovate-config:automerge-github-actions",
+  ],
+  platform: "github",
+  username: "bjw-s-bot[bot]",
+  gitAuthor: "bjw-s-bot <87358111+bjw-s-bot[bot]@users.noreply.github.com>",
+  repositories: ["bjw-s/helm-charts"],
+}

.github/workflows/schedule-renovate.yaml

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+---
+name: Schedule - Renovate
+
+on:
+  workflow_dispatch:
+    inputs:
+      dryRun:
+        description: "Dry-Run"
+        default: false
+        required: false
+        type: boolean
+      logLevel:
+        description: "Log-Level"
+        default: "debug"
+        required: false
+  schedule:
+    - cron: "0 * * * *"
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/renovate.json5"
+      - ".github/renovate/**.json"
+      - ".github/renovate/**.json5"
+      - ".github/workflows/schedule-renovate.yaml"
+
+jobs:
+  renovate:
+    name: Renovate
+    uses: bjw-s/gh-workflows/.github/workflows/run-renovate.yaml@main
+    with:
+      configurationFile: ".github/renovate.json5"
+      dryRun: ${{ inputs.dryRun || 'false' }}
+      renovateLogLevel: ${{ inputs.logLevel || 'debug' }}
+    secrets:
+      app_id: ${{ secrets.BJWS_APP_ID }}
+      app_private_key: ${{ secrets.BJWS_APP_PRIVATE_KEY }}