chore: update web-features from 1.0.0 to 2.15.0

[jcscottiii]

Notable things that have been added:

• Browser Release data. Now, we could actually remove the bcd job and migrate the logic into the web features job since we can get the same data from the v2.15.0 of the schema. Filed [ENHANCEMENT] Deprecate BCD workflow job in favor of web features workflow #1021

This commit also modifies the go code to add the new fields with sensible null / zero values since we don't need them yet. We have to add these fields to satisfy the exhaustruct linter.

Manual changes that we kept from #531:

• Add an explicit StringorStringArray definition. Because it otherwise it takes the name of the first variable of it (previously Alias and now Caniuse) and uses it everywhere else. So all the usages would use Caniuse And that does not explain that the value could be a String or String Array.

Future PR

• Rename the file from defs.schema.json to data.schema.json to reflect the updated filename in web features. Kept it as defs.schema.json because it would easier to see the diffs. Otherwise, there are enough changes where git thinks data.schema.json is a new file (even with git mv)