fix(ios): allow string-based "verticalAlign" in Ti.UI.Label

[hansemannn]

JIRA: https://jira.appcelerator.org/browse/TIMOB-28391

Example:

const win = Ti.UI.createWindow({
    backgroundColor: '#fff'
});
 
const view = Ti.UI.createView({
    backgroundColor: '#f0f0f0',
    height: 200,
    width: 200
});
 
view.add(Ti.UI.createLabel({
    text: 'Hello world',
    verticalAlign: 'top',
    height: Ti.UI.FILL,
    width: Ti.UI.FILL
}));
 
win.add(view);
win.open();

[build]

	Fails
🚫	Tests have failed, see below for more information.

	Messages
📖	✊ The commits in this PR match our conventions! Feel free to Rebase and Merge this PR when ready.
📖	❌ 2 tests have failed There are 2 tests failing and 960 skipped out of 15407 total tests.
📖	🎉 Another contribution from our awesome community member, hansemannn! Thanks again for helping us make Titanium SDK better. 👍
📖	💾 Here's the generated SDK zipfile.

Tests:

Classname	Name	Time	Error
android.emulator.Titanium.Network.HTTPClient	TIMOB-19042 (5.0.2)	0.164	Error: expected 502 to equal 404 at Assertion.fail (/node_modules/should/cjs/should.js:275:13) at Assertion.value (/node_modules/should/cjs/should.js:356:9) at HTTPClient.xhr.onerror (/ti.network.httpclient.test.js:124:16)
ios.macos.Titanium.Media.properties	.audioPlaying is a Boolean (10.15.5)	29.081	Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. (app.js) run@file:///Users/build/jenkins/workspace/ium-sdk_titanium_mobile_PR-12566/tmp/mocha/build/iphone/build/Products/Debug-maccatalyst/mocha.app/Contents/Resources/ti.main.js:9258:22 processImmediateQueue@file:///Users/build/jenkins/workspace/ium-sdk_titanium_mobile_PR-12566/tmp/mocha/build/iphone/build/Products/Debug-maccatalyst/mocha.app/Contents/Resources/ti.main.js:9321:18 drainQueues@file:///Users/build/jenkins/workspace/ium-sdk_titanium_mobile_PR-12566/tmp/mocha/build/iphone/build/Products/Debug-maccatalyst/mocha.app/Contents/Resources/ti.main.js:9298:52

Generated by 🚫 dangerJS against 6a69293

[sgtcoolguy]

LGTM

[lokeshchdhry]

FR Passed.