Update test_vulkan_context.cc to use Vulkan 1.1 (#170351)

Skia is moving to require 1.1 as its minimum supported version instead
of 1.0.

This is part of an effort to clean up and consolidate Vulkan
initialization logic, which gets much easier with some of the extensions
that were promoted to 1.1. This is for skbug.com/422204178 and required
to roll https://skia-review.googlesource.com/c/skia/+/1002391 into
Flutter.

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engine/src/flutter/testing/test_vulkan_context.cc

@@ -49,7 +49,7 @@ TestVulkanContext::TestVulkanContext() {
 
   application_ = std::make_unique<vulkan::VulkanApplication>(
       *vk_, "Flutter Unittests", std::vector<std::string>{},
-      VK_MAKE_VERSION(1, 0, 0), VK_MAKE_VERSION(1, 0, 0), true);
+      VK_MAKE_VERSION(1, 0, 0), VK_MAKE_VERSION(1, 1, 0), true);
   if (!application_->IsValid()) {
     FML_LOG(ERROR) << "Failed to initialize basic Vulkan state.";
     return;
@@ -85,7 +85,7 @@ TestVulkanContext::TestVulkanContext() {
 
   sk_sp<skgpu::VulkanMemoryAllocator> allocator =
       flutter::FlutterSkiaVulkanMemoryAllocator::Make(
-          VK_MAKE_VERSION(1, 0, 0), application_->GetInstance(),
+          VK_MAKE_VERSION(1, 1, 0), application_->GetInstance(),
           device_->GetPhysicalDeviceHandle(), device_->GetHandle(), vk_, true);
 
   skgpu::VulkanExtensions extensions;
@@ -96,7 +96,7 @@ TestVulkanContext::TestVulkanContext() {
   backend_context.fDevice = device_->GetHandle();
   backend_context.fQueue = device_->GetQueueHandle();
   backend_context.fGraphicsQueueIndex = device_->GetGraphicsQueueIndex();
-  backend_context.fMaxAPIVersion = VK_MAKE_VERSION(1, 0, 0);
+  backend_context.fMaxAPIVersion = VK_MAKE_VERSION(1, 1, 0);
   backend_context.fDeviceFeatures = &features;
   backend_context.fVkExtensions = &extensions;
   backend_context.fGetProc = get_proc;