Update most non-major dependencies to v26.6.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
babel-jest	devDependencies	minor	26.5.2 -> 26.6.0
jest (source)	devDependencies	minor	26.5.3 -> 26.6.0

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Release Notes

facebook/jest

v26.6.0

Compare Source

Features

• [jest-cli, jest-config] Add support for the jest.config.ts configuration file (#​10564)

Fixes

• [jest-config] Simplify transform RegExp (#​10207)
• [jest-fake-timers] Lazily instantiate mock timers (#​10551)
• [jest-runtime] require.main is no longer undefined when using jest.resetModules (#​10626)
• [@jest/types] Add missing values for timers (#​10632)

Chore & Maintenance

• [docs] Add step for fetching backers.json file in website setup docs (#​10631)
• [docs] Add page detailing environment variables set by Jest (#​10630)
• [jest-circus] Refactor callAsyncCircusFn parameters (#​10629)

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