Make trunk builds "0.0.0"

Summary:
X-link: facebook/yoga#1466

Right now Yoga's main branch says it's 2.0.0, and RN's dirsync says its 1.14.0, but the code is really closer to what will be Yoga 3.0.0.

This changes trunk builds to "0.0.0" for clarity, which will be assigned a real version number the first time publishing a new Yoga branch.

This is separately a good practice to prevent the chance of accidental publishes causing damage.

Changelog: [Internal]

Differential Revision: D51236778

packages/react-native/ReactCommon/yoga/Yoga.podspec

@@ -16,7 +16,7 @@ end
 
 Pod::Spec.new do |spec|
   spec.name = 'Yoga'
-  spec.version = '1.14.0'
+  spec.version = '0.0.0'
   spec.license =  { :type => 'MIT' }
   spec.homepage = 'https://yogalayout.com'
   spec.documentation_url = 'https://yogalayout.com/docs/'