basic-features.md: add a column for v8.2.0

[qiancai]

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What is changed, added or deleted? (Required)

As in the title

Which TiDB version(s) do your changes apply to? (Required)

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For details, see tips for choosing the affected versions (in Chinese).

• [x] master (the latest development version)
• [x] v8.2 (TiDB 8.2 versions)
• [ ] v8.1 (TiDB 8.1 versions)
• [ ] v8.0 (TiDB 8.0 versions)
• [ ] v7.6 (TiDB 7.6 versions)
• [ ] v7.5 (TiDB 7.5 versions)
• [ ] v7.1 (TiDB 7.1 versions)
• [ ] v6.5 (TiDB 6.5 versions)
• [ ] v6.1 (TiDB 6.1 versions)
• [ ] v5.4 (TiDB 5.4 versions)
• [ ] v5.3 (TiDB 5.3 versions)
• [ ] v5.2 (TiDB 5.2 versions)
• [ ] v5.1 (TiDB 5.1 versions)

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• [ ] Delete files
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• [ ] Need modification after applied to another branch
• [ ] Might cause conflicts after applied to another branch

[ti-chi-bot[bot]]

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[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2024-06-24 03:38:43.611778211 +0000 UTC m=+604450.097267042: :ballot_box_with_check: agreed by hfxsd.

[ti-chi-bot[bot]]

@qiancai: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-verify	ea4a17b8031b582e545ad7f573518ea52d79a9ba	link	true	/test pull-verify

Full PR test history. Your PR dashboard.

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