Update hub.py to be compatible with PyModbus >=3.10 and HA 2025.9

[jacauc]

Attempt to make victron integration compatible with pymodbus API 3.10.0 and greater

"Change slave to device_id and slave= to device_id=. (#2600)"

https://pymodbus.readthedocs.io/en/latest/source/api_changes.html

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: Attempt to make victron integration compatible with pymodbus API 3.10.0 and greater
• This PR is related to issue: [FIXED] No compatibility with PyModbus of upcoming 2025.9 release #361
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• The code has been formatted using Ruff (ruff format custom_components/victron)

[sfstar]

Thank you for opening this pr,
Do you know/have you tested this fix with the non-beta version 2025.8.x?
Will look into merging this tommorow (will have to revert the beta pr for the 0.7.0-beta release in order to allow this to be released as an hotfix before wednesday).

[sfstar]

LGTM, Didn't test it with the beta release as of yet but it matches the changelog of pymodbus pr #2600 https://pymodbus.readthedocs.io/en/latest/source/changelog.html#version-3-10-0 and home-assistant/core@7572b2a with the pr of the upcoming 2025.9 beta release