feat: deps updates and small fixes (#732)

Author: uoboda-splunk

.github/workflows/build-test-release.yml

@@ -129,8 +129,8 @@ jobs:
         run: |
           curl -sSL https://install.python-poetry.org | python3 -
           poetry install -E docker
-          poetry add --dev sphinx-rtd-theme
-          poetry add --dev sphinx-panels
+          poetry add --group dev sphinx-rtd-theme
+          poetry add --group dev sphinx-panels
           poetry run pytest -v -m doc tests/e2e
 
   test-splunk-external: