chore: update to ioslib@1.7.19

[cb1kenobi]

JIRA: https://jira.appcelerator.org/browse/TIMOB-27582

[build]

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

	Messages
📖	💾 Here's the generated SDK zipfile.
📖	❌ 1 tests have failed There are 1 tests failing and 471 skipped out of 4336 total tests.
📖	✊ The commits in this PR match our conventions! Feel free to Rebase and Merge this PR when ready.

Tests:

Classname	Name	Time	Error
ios.Titanium.UI.WebView	userAgent	30	Error: timeout of 30000ms exceeded file:///Users/build/Library/Developer/CoreSimulator/Devices/C24824CE-48D9-41C3-A2FE-48BA6281ED53/data/Containers/Bundle/Application/EF6A4D25-1D73-4C87-B541-CD0187DF7FB0/mocha.app/ti-mocha.js:4326:27

Dependencies with modified semantic versioning:

• ioslib - from ^1.7.18 to ^1.7.19

Generated by 🚫 dangerJS against 0c480c2

[lokeshchdhry]

FR Passed.

Not passing the --device-id the CLI autoselects 13.2.2 sim. The build succeeds & works as expected.

Studio Ver: 5.1.4.201909061933
SDK Ver: 8.2.2 local build
OS Ver: 10.14.5
Xcode Ver: Xcode 11.2.1
Appc NPM: 4.2.15
Appc CLI: 7.1.1
Daemon Ver: 1.1.3
Ti CLI Ver: 5.2.1
Alloy Ver: 1.14.1
Node Ver: 10.17.0
NPM Ver: 6.11.3
Java Ver: 10.0.2
Simulator: Iphone 11 Pro ios 13.2.2, Iphone xs max ios 12.4