Update EMS landing page link (#78515)

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

Author: nickpeihl

src/plugins/maps_legacy/config.ts

@@ -29,7 +29,7 @@ export const configSchema = schema.object({
   manifestServiceUrl: schema.string({ defaultValue: '' }),
   emsFileApiUrl: schema.string({ defaultValue: 'https://vector.maps.elastic.co' }),
   emsTileApiUrl: schema.string({ defaultValue: 'https://tiles.maps.elastic.co' }),
-  emsLandingPageUrl: schema.string({ defaultValue: 'https://maps.elastic.co/v7.7' }),
+  emsLandingPageUrl: schema.string({ defaultValue: 'https://maps.elastic.co/v7.10' }),
   emsFontLibraryUrl: schema.string({
     defaultValue: 'https://tiles.maps.elastic.co/fonts/{fontstack}/{range}.pbf',
   }),