feat: add visionOS support (#3425)

* feat: add visionOS to target platforms

* disable unsupported API

* add temporary `promises` patches

* fix(visionOS): update promises patches

* apply code review suggestions

* format code

ios/patches/PromisesSwift.podspec

@@ -0,0 +1,21 @@
+Pod::Spec.new do |s|
+  s.name        = 'PromisesSwift'
+  s.version     = '2.3.1.1'
+  s.authors     = 'Google Inc.'
+  s.license     = { :type => 'Apache-2.0', :file => 'LICENSE' }
+  s.homepage    = 'https://github.com/google/promises'
+  s.source      = { :git => 'https://github.com/google/promises.git', :tag => '2.3.1' }
+  s.summary     = 'Synchronization construct for Swift'
+  s.description = <<-DESC
+
+  Promises is a modern framework that provides a synchronization construct for
+  Swift to facilitate writing asynchronous code.
+                     DESC
+                     
+  s.platforms = { :ios => '9.0', :osx => '10.11', :tvos => '9.0', :watchos => '2.0', :visionos => '1.0' }
+  s.swift_versions = ['5.0', '5.2']
+
+  s.module_name = 'Promises'
+  s.source_files = "Sources/#{s.module_name}/*.{swift}"
+  s.dependency 'PromisesObjC', "#{s.version}"
+end