v6 breaking changes features

[HarelM]

This is a placeholder issue for things that we might consider for v6 as a breaking changes.

• ESM build #6254 - Add ESM build, this will break Angular default behavior since it uses ESM by default and there's a need to load the worker code separately there.
• Split tiles on-the-fly to improve over scale vector handling #6521 - Make change the default to be 4 instead of not using this feature
• GeoJSONSource setData and updateData waitForCompletion option #6688 - remove wait for completion and return a promise, maybe change other return values to avoid returning "this".
• Send GeoJSON data from worker to main if loaded from a URL #6811 (comment) - from the comment here: I'd love to see GeoJSONSource#serialize and Map#getStyle become async and pull this giant dataset from the worker only when it's requested - I'm not 100% sure about this to be honest...
• Zoom in/out buttons should round zoom level #6872 - I don't think there's a need to do that
• feat: support geojson nested objects #6992 - Changes how geojson is returned from query render features - merging this will require a breaking change version
• Skip work for vector tiles loaded from browser cache with etag match #6972 - Change the signature of source.loadTile method to return a boolean
• refactor!: UrlSearchParams based Hash #7073 - change hash to use urlsearchpatams
• feat: restrict sideEffects to CSS files in package.json #7258
• fix: mixed legacy+expression filter handling in maplibre-style-spec (#1544) maplibre-style-spec#1545 - deprecated expression validation
• bumping from ES2016 to reduce the bundle size impact of modern features like chore: add @typescript-eslint/prefer-optional-chain #7392
• Drop Webgl1 support feat!: Drop webgl1 support #7453
  Because this allows the luma.gl migration to go forward and some performance fixes for example in terrain3d