Use python-typing-update on pylint/testutils directory

[DanielNoord]

• Add yourself to CONTRIBUTORS if you are a new contributor.
• Write a good description on what the PR does.

Type of Changes

	Type
✓	🔨 Refactoring

Description

Ref #4683.

[DanielNoord]

@cdce8p Want me to keep doing this in batches or do you trust the tool enough to do one big PR?

[coveralls]

Pull Request Test Coverage Report for Build 2165953069

• 70 of 70 (100.0%) changed or added relevant lines in 14 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.003%) to 93.38%

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Totals
Change from base Build 2165949081:	0.003%
Covered Lines:	15884
Relevant Lines:	17010

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💛 - Coveralls

[cdce8p]

@cdce8p Want me to keep doing this in batches or do you trust the tool enough to do one big PR?

If it's not too much effort, I would recommend batches. Although I do trust my tool, smaller chunks are much easier too review.

[DanielNoord]

If it's not too much effort, I would recommend batches. Although I do trust my tool, smaller chunks are much easier too review.

Batches is easy enough! Just wanting the way that's easiest for all 😄

[cdce8p]

You can tag me for reviews if you want. Just to make sure I see the PRs 😃

[DanielNoord]

👍

I was hesitant as I know you're often busy and there is still quite some PRs to go. Didn't want to be too pushy. But I'll tag you 😄