Unify copies of Version.xcconfig. These files had already started to diverge: ``` $ find Source -name Version.xcconfig -exec cksum {} \; 3149735970 3130 Source/WebKit/Configurations/Version.xcconfig 163302794 3130 Source/JavaScriptCore/Configurations/Version.xcconfig 1932663448 3136 Source/WebKitLegacy/mac/Configurations/Version.xcconfig 813728237 3129 Source/WebGPU/Configurations/Version.xcconfig 2688390500 885 Source/WebInspectorUI/Configurations/Version.xcconfig 1932663448 3136 Source/WebCore/Configurations/Version.xcconfig 1491318891 3130 Source/WebCore/PAL/Configurations/Version.xcconfig 1737181310 3130 Source/ThirdParty/ANGLE/Configurations/Version.xcconfig 163302794 3130 Source/ThirdParty/libwebrtc/Configurations/Version.xcconfig ```
<rdar://problem/99249045>
Pull request: https://github.com/WebKit/WebKit/pull/3747
Committed 253909@main (4b9a8ee9163f): <https://commits.webkit.org/253909@main> Reviewed commits have been landed. Closing PR #3747 and removing active labels.