refactor: use k8s_service_info lib instead of SDI

Use the k8s_service_info for receiving the MLMD GRPC Service info instead of using
the SDI, as it will stop being supported soon.

Fixes #76

charmcraft.yaml

@@ -1,14 +1,15 @@
-# Copyright 2021 Canonical Ltd.
+# Copyright 2024 Canonical Ltd.
 # See LICENSE file for licensing details.
 
-type: "charm"
+type: charm
 bases:
   - build-on:
-      - name: "ubuntu"
-        channel: "20.04"
+    - name: "ubuntu"
+      channel: "20.04"
     run-on:
-      - name: "ubuntu"
-        channel: "20.04"
+    - name: "ubuntu"
+      channel: "20.04"
 parts:
   charm:
-    charm-python-packages: [setuptools, pip]  # Fixes install of some packages
+    charm-python-packages: [setuptools, pip]
+    build-packages: [cargo, rustc, pkg-config, libffi-dev, libssl-dev]