feat: add all workflows from operator-workflows (#14)

.github/workflows/auto_update_libs.yaml

@@ -0,0 +1,10 @@
+name: Auto-update charm libraries
+
+on:
+  schedule:
+    - cron: "0 1 * * *"
+
+jobs:
+  auto-update-libs:
+    uses: canonical/operator-workflows/.github/workflows/auto_update_charm_libs.yaml@main
+    secrets: inherit

.github/workflows/promote_charm.yaml

@@ -0,0 +1,26 @@
+name: Promote charm
+
+on:
+  workflow_dispatch:
+    inputs:
+      origin-channel:
+        type: choice
+        description: "Origin Channel"
+        options:
+          - latest/edge
+      destination-channel:
+        type: choice
+        description: "Destination Channel"
+        options:
+          - latest/stable
+    secrets:
+      CHARMHUB_TOKEN:
+        required: true
+
+jobs:
+  promote-charm:
+    uses: canonical/operator-workflows/.github/workflows/promote_charm.yaml@main
+    with:
+      origin-channel: ${{ github.event.inputs.origin-channel }}
+      destination-channel: ${{ github.event.inputs.destination-channel }}
+    secrets: inherit

.github/workflows/publish_charm.yaml

@@ -0,0 +1,13 @@
+name: Publish to edge
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  test-and-publish-charm:
+    uses: canonical/operator-workflows/.github/workflows/publish_charm.yaml@main
+    secrets: inherit
+    with:
+      channel: latest/edge