Fix maplibre-gl peerDependencies typo

[KiwiKilian]

Would love to test 7.1.0-beta.1, but it's currently not possible using npm without --legacy-peer-deps due to a typo in the peerDependencies.

npm WARN ERESOLVE overriding peer dependency
npm WARN While resolving: react-map-gl@7.1.0-beta.1
npm WARN Found: maplibregl@undefined
npm WARN node_modules/maplibregl
npm WARN 
npm WARN Could not resolve dependency:
npm WARN peer maplibregl@">=1.13.0" from react-map-gl@7.1.0-beta.1
npm WARN node_modules/react-map-gl
npm WARN   react-map-gl@"7.1.0-beta.1" from the root project
npm ERR! code E404
npm ERR! 404 Not Found - GET https://registry.npmjs.org/maplibregl - Not found
npm ERR! 404 
npm ERR! 404  'maplibregl@>=1.13.0' is not in this registry.