🔖 Update CHANGELOG.md for @fast-check/jest@2.0.0, @fast-check/ava@2.0.0

[github-actions[bot]]

Resulting CHANGELOG at:

• https://github.com/dubzzz/fast-check/blob/changelog-8a6651ffb1d0f/packages/jest/CHANGELOG.md
• https://github.com/dubzzz/fast-check/blob/changelog-8a6651ffb1d0f/packages/ava/CHANGELOG.md

Got the following errors:

• ℹ️ Scanned 133 PRs for @fast-check/jest:
• ℹ️ • accepted: 3,
• ℹ️ • skipped ignored: 0,
• ℹ️ • skipped unrelated: 130,
• ℹ️ • failed: 0
• ℹ️ Scanned 548 PRs for @fast-check/ava:
• ℹ️ • accepted: 1,
• ℹ️ • skipped ignored: 0,
• ℹ️ • skipped unrelated: 547,
• 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 065b79733d99b8d55a44e240fa487cb27c7d2bed:

Sandbox	Source
@fast-check/examples	Configuration

[github-actions[bot]]

👋 A preview of the new documentation is available at: http://66a42f679f41aa7a2b249785--dubzzz-fast-check.netlify.app