Add powermon group to ci install

Author: ianmcorvidae

.github/workflows/ci.yml

@@ -30,7 +30,7 @@ jobs:
           pip3 install poetry
       - name: Install meshtastic from local
         run: |
-          poetry install --all-extras --with dev
+          poetry install --all-extras --with dev,powermon
           poetry run meshtastic --version
       - name: Run pylint
         run: poetry run pylint meshtastic examples/ --ignore-patterns ".*_pb2.pyi?$"