RFR: 8304665: Change to Xcode12.4+1.1 devkit

[Ambarish Rapte]

On Tue, 21 Mar 2023 14:07:49 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> This bumps the build number for the devkit we use for our CI builds to match what the JDK did in openjdk/jdk#11869 to fix [JDK-8299693](https://bugs.openjdk.org/browse/JDK-8299693) to resolve a build issue on macOS 13.x Ventura. There are no changes in Xcode itself.

Marked as reviewed by arapte (Reviewer).

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PR Review: https://git.openjdk.org/jfx/pull/1063#pullrequestreview-1350719462