Default `skip_glotpress` to `true` in `ios_bump_version_release`

[mokagio]

With the new localization tooling we no longer rely on a local download_metadata.swift script for metadata localization. To account for this behavior, the ios_bump_version_release action has a skip_glotpress parameter. Both WordPress iOS and WooCommerce iOS are now using the new tooling and setting true for that configuration.

Given that not using download_medata.swift is the desired behavior going forward, I think we should also make skip_glotpress default to true. Alternatively, we could wholesale remove it and ship a new major version.

[iangmaia]

Picking up this issue 🙋‍♂️