pkg: switch Function package APIs from v1beta1 to v1

[haarchri]

Description

This PR updates Function package manifests to use v1 instead of v1beta1 for:

• meta.pkg.crossplane.io
• pkg.crossplane.io

Both Function and FunctionRevision already use v1 as their storage version, so this change does not affect existing Crossplane installations when Crossplane >= 1.17.x

The change only impacts newly built function packages, which will now be published using v1. Installing or upgrading these packages in an existing control plane works without disruption.

Related issue: crossplane/crossplane#6947

[matthewgreenwaldagility]

@haarchri GitHub Actions is failing with this error:

crossplane: error: failed to push package file /home/runner/work/function-patch-and-transform/function-patch-and-transform/arm64.xpkg: POST https://ghcr.io/v2/crossplane-contrib/function-patch-and-transform/blobs/uploads/: DENIED: installation not allowed to Write organization package

Need or want any help with this PR?

[haarchri]

It's because it's running in my fork - need a maintainer to approved and merge

[bobh66]

Kick the CI