Duke Energy Integration

[hunterjm]

Proposed change

Adding a new integration for Duke Energy. Initially this integration will just manually insert statistics for use in the energy dashboard similar to the Opower integration. Also like the Opower integration, the data is up to 48 hours old, so must be manually inserted into the statistics database. It is also possible to retrieve billing data which could be added in a later PR.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• Link to documentation pull request: Duke Energy Documentation home-assistant.io#34631

Checklist

• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

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[hunterjm]

Failing tests are unrelated. Possible fixes in #125522 and #125534

[hunterjm]

Opening this back up for re-review as 1) tests pass locally, 2) potential CI fix is here: #125712, and 3) It's bedtime 😄

I'll rebase and re-run CI if it's fixed in the morning.