🌐 Sync German docs

[nilslindemann]

... with recent changes in one PR.

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Last commit 6200749 at: https://1ee9f785.fastapitiangolo.pages.dev

Modified Pages

• https://1ee9f785.fastapitiangolo.pages.dev/de/how-to/migrate-from-pydantic-v1-to-pydantic-v2/ - (before) - (English)

[nilslindemann]

For the records, I am aware of the failing tests for python 3.14 – from pydantic.v1 import BaseConfig as BaseConfig raises UserWarning: Core Pydantic V1 functionality isn't compatible with Python 3.14 or greater., which is probably expected – but not sure how to fix that.

Oh, I see this is already worked on in 14186, Nice.