update min ios target for testing to 17.0

Author: Chris Yang

display_list/BUILD.gn

@@ -243,7 +243,7 @@ if (is_ios) {
     configs += [ "//flutter/benchmarking:benchmark_library_config" ]
     cflags = [
       "-fobjc-arc",
-      "-mios-simulator-version-min=$ios_testing_deployment_target",
+      "-mios-simulator-version-min=17.0",
     ]
     ldflags =
         [ "-Wl,-install_name,@rpath/libios_display_list_benchmarks.dylib" ]

shell/platform/darwin/ios/BUILD.gn

@@ -225,7 +225,7 @@ source_set("ios_test_flutter_mrc") {
   cflags = [
     "-fvisibility=default",
     "-F$platform_frameworks_path",
-    "-mios-simulator-version-min=$ios_testing_deployment_target",
+    "-mios-simulator-version-min=17.0",
   ]
   sources = [
     "framework/Source/FlutterEnginePlatformViewTest.mm",
@@ -269,7 +269,7 @@ shared_library("ios_test_flutter") {
     "-fvisibility=default",
     "-F$platform_frameworks_path",
     "-fobjc-arc",
-    "-mios-simulator-version-min=$ios_testing_deployment_target",
+    "-mios-simulator-version-min=17.0",
   ]
   ldflags = [
     "-F$platform_frameworks_path",