Merge pull request #79977 from compnerd/presets

utils: repair the XCTest build configuration

Author: compnerd

utils/build-presets.ini

@@ -2151,6 +2151,8 @@ mixin-preset=
 llbuild
 swiftpm
 xctest
+swift-testing
+swift-testing-macros
 foundation
 libdispatch
 indexstore-db
@@ -2171,6 +2173,8 @@ install-llbuild
 install-swiftpm
 install-swiftsyntax
 install-xctest
+install-swift-testing
+install-swift-testing-macros
 install-sourcekit-lsp
 install-swiftformat