plugin-react-navigation: Allow React Navigation v6 as a peer dependency

[imjoehaines]

Goal

Allows React Navigation v6 as a peer dependency of @bugsnag/plugin-react-navigation to fix a peer dependency warning. No changes to the plugin are required

Testing

This is tested in the Maze Runner tests:

bugsnag-js/test/react-native/features/fixtures/app/react_navigation_js/install.sh

Lines 12 to 18 in fdb9e56

	npm install @react-native-community/masked-view@^0.1 --registry=$REGISTRY_URL
	npm install @react-navigation/native@^6.0 --registry=$REGISTRY_URL
	npm install @react-navigation/stack@^6.0 --registry=$REGISTRY_URL
	npm install react-native-gesture-handler@^2.2 --registry=$REGISTRY_URL
	npm install react-native-reanimated@^1.13 --registry=$REGISTRY_URL
	npm install [email protected] --registry=$REGISTRY_URL
	npm install [email protected] --registry=$REGISTRY_URL

I've not updated the unit tests to run against v6 because it requires a Typescript update, which causes a host of dependency issues

[github-actions]

@bugsnag/browser bundle size diff

	Minified	Minfied + Gzipped
Before	42.85 kB	13.07 kB
After	42.85 kB	13.07 kB
±	No change	No change

code coverage diff

Coverage values did not change👌.

Total:

Lines	Branches	Functions	Statements
0%(+0%)	0%(+0%)	0%(+0%)	0%(+0%)

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