Add Gutenberg version details for WordPress 7.1

[annezazu]

Just a quick update to the Gutenberg versions in WordPress doc to cover 7.1.

[github-actions]

Flaky tests detected in 037cdaf.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/31749069351
📝 Reported tests:

adds and activates a new tab when pressing Enter at the end of a tab label in /test/e2e/specs/editor/blocks/tabs.spec.js, passed after 1 failed attempt.

Error: expect(locator).toHaveCount(expected) failed

Locator:  locator('[name="editor-canvas"]').contentFrame().getByRole('tab')
Expected: 3
Received: 2
Timeout:  5000ms

Call log:
  - Expect "toHaveCount" with timeout 5000ms
  - waiting for locator('[name="editor-canvas"]').contentFrame().getByRole('tab')
    14 × locator resolved to 2 elements
       - unexpected value "2"

    at /home/runner/work/gutenberg/gutenberg/test/e2e/specs/editor/blocks/tabs.spec.js:146:25

[github-actions]

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Co-authored-by: t-hamano <wildworks@git.wordpress.org>

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