Fix tibber fails if power production is enabled but no power is produced

[nohn]

Breaking change

Proposed change

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

• This PR fixes or closes issue: fixes Tibber integration failed after upgrade to 2024.9 #125312
• This PR is related to issue:
• Link to documentation pull request:
• pyTibber is upgraded from 0.30.1 to 0.30.2: Danielhiversen/pyTibber@0.30.1...0.30.2 which includes a fix for Add current intraday price ranking to Tibber price sensor #124595 (comment) that made it into 2024.9 and has been filed as Tibber integration failed after upgrade to 2024.9 #125312

Checklist

• The code change is tested and works locally. I don't have solar equipment, so I can't fully test this. However, the comments in Tibber integration failed after upgrade to 2024.9 #125312 suggest, this dependency bump fixes this issue.
• Local tests pass. Your PR cannot be merged unless tests pass I don't have solar equipment, so I can't fully test this. However, the comments in Tibber integration failed after upgrade to 2024.9 #125312 suggest, this dependency bump fixes this issue.
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations I don't have solar equipment, so I can't fully test this. However, the comments in Tibber integration failed after upgrade to 2024.9 #125312 suggest, this dependency bump fixes this issue.
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.

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

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• 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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[home-assistant]

Hey there @Danielhiversen, mind taking a look at this pull request as it has been labeled with an integration (tibber) you are listed as a code owner for? Thanks!

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[MartinHjelmare]

Thanks!

[MartinHjelmare]

Test failure is unrelated.