Update dependency jest to v26.4.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
jest (source)	devDependencies	minor	26.3.0 -> 26.4.0

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Release Notes

facebook/jest

### [`v26.4.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#​2640) [Compare Source](https://togithub.com/facebook/jest/compare/v26.3.0...v26.4.0) ##### Features - `[jest-resolve]` Add support for `packageFilter` on custom resolver ([#​10393](https://togithub.com/facebook/jest/pull/10393)) ##### Fixes - `[pretty-format]` Handle `tagName` not being a string ([#​10397](https://togithub.com/facebook/jest/pull/10397))

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