<Integration BottlecapDave/HomeAssistant-OctopusEnergy> Repository structure for v8.3.0 is not compliant

[CONFIG_SCHEMA] Integrations which implement 'async_setup' or 'setup' must define either 'CONFIG_SCHEMA', 'PLATFORM_SCHEMA' or 'PLATFORM_SCHEMA_BASE'. If the integration has no configuration parameters, can only be set up from platforms or can only be set up from config entries, one of the helpers cv.empty_config_schema, cv.platform_only_config_schema or cv.config_entry_only_config_schema can be used.

The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/