feat(cluster): use the native flux renovate integration

Signed-off-by: Devin Buhl <devin@buhl.casa>

.github/workflows/renovate-schedule.yaml

@@ -1,36 +0,0 @@
----
-name: Schedule - Renovate Helm Releases
-
-on: # yamllint disable-line rule:truthy
-  workflow_dispatch:
-  schedule:
-    - cron: "0 */12 * * *"
-
-jobs:
-  renovate-helm-releases:
-    runs-on: ubuntu-20.04
-    steps:
-      - uses: actions/checkout@v2
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          fetch-depth: 1
-
-      - name: Renovate Helm Releases
-        uses: k8s-at-home/renovate-helm-releases@v1
-        with:
-          cluster-path: "./cluster"
-
-      - name: Create pull request for renovatebot helm-release annotations
-        uses: peter-evans/create-pull-request@v3
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          branch: renovate-annotations
-          delete-branch: true
-          title: "chore(deps): update renovate annotations"
-          signoff: false
-          committer: GitHub <noreply@github.com>
-          author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
-          commit-message: "chore(deps): update renovate annotations"
-          body: |
-            Update HelmReleases inorder for Renovate to pick up new versions of Helm charts
-          labels: renovate/annotations