Migrate platform-ref-azure from Crossplane v1 to v2 with namespaced resources

[ytsarev]

Description of your changes

• XRD API version: apiextensions.crossplane.io/v1 → v2

• Resource kinds: Removed X-prefix (XCluster → Cluster, XSQLInstance → SQLInstance, etc.)

• Scope: All XRs are now namespaced (scope: Namespaced)

• File naming: Renamed examples from *-claim.yaml to *-xr.yaml

• Management: deletionPolicy → managementPolicies array

• Dependencies: Updated all 6 dependent configurations to v2.0.0 (configuration-app to v2.1.0)

• XRDs: Updated to v2 API with namespace scope, removed claimNames and connectionSecretKeys

• Functions: Updated to use namespaced provider APIs (azurem, helmm) and v2 patterns

• Tests: Updated composition and E2E tests to v2 conventions with proper namespace handling

• Usage Resources: Migrated to protection.crossplane.io/v1beta1 API with namespace support

• Provider Config: Added provider-family-azure to E2E test initResources for RBAC workaround

• Fixed configuration-app label propagation to support Usage resource dependencies

• Updated helm Release API to namespaced version in Usage resources

I have:

• Read and followed Upbound's contribution process.
• Run make reviewable to ensure this PR is ready for review.
• Added backport release-x.y labels to auto-backport this PR, as appropriate.

How has this code been tested

• ✅ All composition tests passing

• ✅ E2E test passing

• skipDelete: True and Acceptance testing of ghost application

kubectl port-forward -n ghost svc/$(kubectl get svc -n ghost -l app.kubernetes.io/name=ghost -ojsonpath='{.items[0].metadata.name}') 8080:80
Forwarding from 127.0.0.1:8080 -> 2368
Forwarding from [::1]:8080 -> 2368

open http://127.0.0.1:8080/ghost