[benchmark] bump minimum OS versions

(cherry picked from commit 942ea60)

Author: oxy

benchmark/cmake/modules/AddSwiftBenchmarkSuite.cmake

@@ -110,10 +110,10 @@ macro(configure_sdks_darwin)
   set(appletvos_arch "arm64")
   set(watchos_arch "armv7k" "arm64_32")
 
-  set(macosx_ver "10.9")
-  set(iphoneos_ver "8.0")
-  set(appletvos_ver "9.1")
-  set(watchos_ver "2.0")
+  set(macosx_ver "10.13")
+  set(iphoneos_ver "11.0")
+  set(appletvos_ver "11.0")
+  set(watchos_ver "4.0")
 
   set(macosx_vendor "apple")
   set(iphoneos_vendor "apple")