Update dependency pytest-textual-snapshot to v1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pytest-textual-snapshot	==0.4.0 -> ==1.0.0

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[mirpedrol]

Adding it to the 3.0 milestone as it would be good to update the version but it requires changes in the code

[renovate]

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