ci, build: update CI, libraries, python dependencies, and format (#112)

* ci, build: update CI and python dependencies

This commit updates the CI with standard CI configuration (juju, actions, deps) that is shared
across multiple repositories. All python dependencies are also updated to their latest working
versions. Finally, some formatting was applied on non-compliant files (copyright, style).

.github/workflows/integrate.yaml

@@ -61,14 +61,9 @@ jobs:
       with:
         provider: microk8s
         channel: 1.24/stable
-        # Pinned until this bug is resolved: https://bugs.launchpad.net/juju/+bug/1992833
-        bootstrap-options: "--agent-version=2.9.34"
         microk8s-addons: "dns storage rbac metallb:10.64.140.43-10.64.140.49"
-
-      # TODO: Remove once the actions-operator does this automatically
-    - name: Configure kubectl
-      run: |
-        sg microk8s -c "microk8s config > ~/.kube/config"
+        juju-channel: 2.9/stable
+        charmcraft-channel: latest/candidate
 
     - name: Build and test
       working-directory: ./charms/${{ matrix.charm }}

bundle.yaml

@@ -1,4 +1,4 @@
-# Copyright 2021 Canonical Ltd.
+# Copyright 2023 Canonical Ltd.
 # See LICENSE file for licensing details.
 
 bundle: kubernetes

charms/argo-controller/charmcraft.yaml

@@ -1,4 +1,4 @@
-# Copyright 2021 Canonical Ltd.
+# Copyright 2023 Canonical Ltd.
 # See LICENSE file for licensing details.
 
 type: charm

charms/argo-controller/config.yaml

@@ -1,4 +1,4 @@
-# Copyright 2021 Canonical Ltd.
+# Copyright 2023 Canonical Ltd.
 # See LICENSE file for licensing details.
 
 options: