fix(datasource/cdnjs): update logic to accomodate api changes (#27212)

lib/modules/datasource/cdnjs/__fixtures__/bulma.json

lib/modules/datasource/cdnjs/__fixtures__/d3-force.json

lib/modules/datasource/cdnjs/__fixtures__/sri.json

...modules/datasource/cdnjs/__snapshots__/index.spec.ts.snap

lib/modules/datasource/cdnjs/index.spec.ts

lib/modules/datasource/cdnjs/index.ts

lib/modules/datasource/cdnjs/schema.ts

lib/modules/datasource/schema.ts

lib/util/cache/package/types.ts