Move scenario app to use iPhone Se 3rd gen iOS 16.2, un-skip test TwoPlatformViewsWithOtherBackDropFilterTests (#41532)

iPhone 8 is old and not installed by default with the latest XCodes. Move the scenario test to a newer iPhone that has a home button. (Unfortunately, iPhones without home button have the bottom navigation bar that animates, resulting inconsistency during screenshots)

Fixes flutter/flutter#125167

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

Author: Chris Yang

testing/scenario_app/ios/Scenarios/Scenarios.xcodeproj/project.pbxproj

@@ -320,7 +320,7 @@ - (instancetype)initWithInvocation:(NSInvocation*)invocation {
   return [super initWithManager:manager invocation:invocation];
 }
 
-- (void)skip_testPlatformView {
+- (void)testPlatformView {
   [self checkPlatformViewGolden];
 }
 

testing/scenario_app/ios/Scenarios/ScenariosUITests/PlatformViewUITests.m

@@ -48,7 +48,7 @@ echo ""
 
 set -o pipefail && xcodebuild -sdk iphonesimulator \
   -scheme Scenarios \
-  -destination 'platform=iOS Simulator,OS=16.0,name=iPhone 8' \
+  -destination 'platform=iOS Simulator,OS=16.2,name=iPhone SE (3rd generation)' \
   clean test \
   FLUTTER_ENGINE="$FLUTTER_ENGINE"
 
@@ -58,7 +58,7 @@ echo ""
 # Skip testFontRenderingWhenSuppliedWithBogusFont: https://github.com/flutter/flutter/issues/113250
 set -o pipefail && xcodebuild -sdk iphonesimulator \
   -scheme Scenarios \
-  -destination 'platform=iOS Simulator,OS=16.0,name=iPhone 8' \
+  -destination 'platform=iOS Simulator,OS=16.2,name=iPhone SE (3rd generation)' \
   clean test \
   FLUTTER_ENGINE="$FLUTTER_ENGINE" \
   -skip-testing "ScenariosUITests/BogusFontTextTest/testFontRenderingWhenSuppliedWithBogusFont" \