Merge pull request #39069 from apple/shahmishal/dont-build-benchmarks

Don't build the benchmarks part of toolchain build

Author: shahmishal

utils/build-presets.ini

@@ -1217,6 +1217,9 @@ verbose-build
 build-ninja
 build-swift-stdlib-unittest-extra
 
+# Don't build the benchmarks
+skip-build-benchmarks
+
 # When building for an Xcode toolchain, don't copy the Swift Resource/ directory
 # into the LLDB.framework. LLDB.framework will be installed alongside a Swift
 # compiler, so LLDB should use its resource directory directly.