chore(testdata): update testdata for Vitopure350 (#711)

* Update testdata for Vitopure350

Updated timestamps and modified some values in the Vitopure350 JSON response.

* Update Vitopure350.json

* fix tests

* fix import

* Revert "fix import"

This reverts commit e001ea9.

* Reapply "fix import"

This reverts commit 8cdd50b.

Author: CFenner