🔖 Update CHANGELOG.md for fast-check@3.20.0, @fast-check/vitest@0.1.2

[github-actions[bot]]

Resulting CHANGELOG at:

• https://github.com/dubzzz/fast-check/blob/changelog-3acdf92ed09eb/packages/fast-check/CHANGELOG.md
• https://github.com/dubzzz/fast-check/blob/changelog-3acdf92ed09eb/packages/vitest/CHANGELOG.md

Got the following errors:

• ℹ️ Scanned 159 PRs for @fast-check/vitest:
• ℹ️ • accepted: 0,
• ℹ️ • skipped ignored: 0,
• ℹ️ • skipped unrelated: 159,
• ℹ️ • failed: 0

[codesandbox-ci[bot]]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 25650e59660f20d58eab8f9607c3492f82aa9531:

Sandbox	Source
@fast-check/examples	Configuration

[github-actions[bot]]

👋 A preview of the new documentation is available at: http://66913d5156d54c2801701ee7--dubzzz-fast-check.netlify.app

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.79%. Comparing base (ed3dd61) to head (25650e5).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #5123 +/- ## ======================================= Coverage 94.79% 94.79% ======================================= Files 218 218 Lines 9248 9248 Branches 2702 2694 -8 ======================================= Hits 8767 8767 Misses 481 481 ``` | [Flag](https://app.codecov.io/gh/dubzzz/fast-check/pull/5123/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Nicolas+DUBIEN) | Coverage Δ | | |---|---|---| | [unit-tests](https://app.codecov.io/gh/dubzzz/fast-check/pull/5123/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Nicolas+DUBIEN) | `94.79% <ø> (ø)` | | | [unit-tests-18.x-Linux](https://app.codecov.io/gh/dubzzz/fast-check/pull/5123/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Nicolas+DUBIEN) | `94.79% <ø> (ø)` | | | [unit-tests-20.x-Linux](https://app.codecov.io/gh/dubzzz/fast-check/pull/5123/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Nicolas+DUBIEN) | `94.79% <ø> (ø)` | | | [unit-tests-22.x-Linux](https://app.codecov.io/gh/dubzzz/fast-check/pull/5123/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Nicolas+DUBIEN) | `?` | | | [unit-tests-latest-Linux](https://app.codecov.io/gh/dubzzz/fast-check/pull/5123/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Nicolas+DUBIEN) | `?` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Nicolas+DUBIEN#carryforward-flags-in-the-pull-request-comment) to find out more.

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