Update ionic-native monorepo to v4.20.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@ionic-native/core	dependencies	minor	4.17.0 -> 4.20.0
@ionic-native/splash-screen	dependencies	minor	4.17.0 -> 4.20.0

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Release Notes

ionic-team/ionic-native

v4.20.0

Bug Fixes

• bluetooth-le: Fix typo in interface definition (#​2881) (c2f4561)
• health: fix typos (#​2831) (ea3150e)

Features

• adjust: add adjust sdk plugin (#​2872) (9e6705d)
• admob: add plugin (#​2864) (707ce1c)
• analytics-firebase: add plugin (#​2862) (5df3de7)
• background-geolocation: add v3 functions and interfaces (#​2393) (1ba6f97)
• baidu-push: add plugin (#​2838) (c3de8df)
• firebase: add clearAllNotifications method (#​2867) (7c46d8c)
• gao-de-location: add plugin (#​2857) (e2b25de)
• in-app-browser: add 'beforeload' as option (#​2863) (d33bcb0)
• lottie-splash-screen: add new plugin (#​2880) (603d694)
• web-intent: Add missing type info (#​2878) (3226f76)

v4.18.0

Compare Source

Bug Fixes

• local-notifications: update type of the every property (#​2825) (b166cc5)

Features

• downloader: add plugin (#​2820) (0065704)
• line-login: add loginWeb function (#​2810) (7145afa)

Reverts

• Revert "bump deps" (543fa64)

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