feat(docs): use v1 for meta.pkg.crossplane.io api

[haarchri]

use v1 api for meta.pkg.crossplane.io across all code blocks in the code
side note: i wonder if we want to deprecate the old v1alpha1 and v1beta1 versions for meta.pkg.crossplane.io - will open a follow up tracking issue in crossplane core repo

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[jeanduplessis]

LGTM