Use standalone crddiff tool

[turkenf]

Description of your changes

This PR uses the standalone crddiff to fix the report-breaking-changes pipeline issue.

I have:

• [x] Read and followed Crossplane's contribution process.
• [x] Run make reviewable to ensure this PR is ready for review.
• [ ] ~Added backport release-x.y labels to auto-backport this PR if necessary.~

How has this code been tested

Tested with the uptest in the below comments.

[turkenf]

/test-examples="examples/network/v1beta1/bastionhost.yaml"

https://github.com/crossplane-contrib/provider-upjet-azure/actions/runs/11616547540

[turkenf]

/test-examples="examples/network/v1beta2/subnet.yaml"

https://github.com/crossplane-contrib/provider-upjet-azure/actions/runs/11616548328