8327493: Update minimum Xcode version in docs

[magicus]

The file building.{md,html} indicates the required minimum version of Xcode to use. When the required minimum version of Clang was updated to 13 (JDK-8325878), the minimum Xcode version was not updated. It should now be Xcode 13.0, rather than 8.

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Progress

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Issue

• JDK-8327493: Update minimum Xcode version in docs (Enhancement - P4)

Reviewers

• Christoph Langer (@RealCLanger - Reviewer)

Reviewing

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[magicus]

/integrate auto

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[openjdk]

@magicus This change now passes all automated pre-integration checks.

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8327493: Update minimum Xcode version in docs

Reviewed-by: clanger

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[openjdk]

@magicus This pull request will be automatically integrated when it is ready

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[mlbridge]

Webrevs

• 00: Full (d142c07d)

[openjdk]

/integrate

[openjdk]

Going to push as commit 7b1f2c8.

[openjdk]

@openjdk[bot] Pushed as commit 7b1f2c8.

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