Update openstack-operator to use placement API from nova-operator

[auniyal61]

Replace placement-operator dependency with nova-operator's placement API now that placement code has been integrated into nova-operator

• Update all imports from placement-operator/api to nova-operator/api/placement
• Remove placement-operator from go.mod and api/go.mod dependencies
• Update nova-operator dependency to placement-integration-v5
• Add replace directives pointing to auniyal61/nova-operator fork (temporary)
• Clean up go.sum files to remove stale placement-operator entries

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[softwarefactory-project-zuul]

Merge Failed.

This change or one of its cross-repo dependencies was unable to be automatically merged with the current state of its repository. Please rebase the change and upload a new patchset.
Warning:
Error merging github.com/openstack-k8s-operators/nova-operator for 1101,b54a701efcaf51fb43e59bca78c890dbf09149aa

[github-actions]

OpenStackControlPlane CRD Size Report

Metric	Value
CRD JSON size	322326 bytes (315KB)
Base branch size	322326 bytes
Change	+0.00%
Status	yellow — growing

Threshold reference

Color	Range	Meaning
🟢 green	< 300KB	Comfortable
🟡 yellow	300–400KB	Growing
🟠 orange	400–750KB	Concerning
🔴 red	> 750KB	Approaching 1.5MB etcd limit (cut in half to allow space for update)

[softwarefactory-project-zuul]

Merge Failed.

This change or one of its cross-repo dependencies was unable to be automatically merged with the current state of its repository. Please rebase the change and upload a new patchset.
Warning:
Error merging github.com/openstack-k8s-operators/nova-operator for 1101,b54a701efcaf51fb43e59bca78c890dbf09149aa

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/d0d44a0929344687a85614e95ed8e6e7

❌ openstack-k8s-operators-content-provider FAILURE in 7m 46s
⚠️ podified-multinode-edpm-deployment-crc SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ cifmw-crc-podified-edpm-baremetal SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ adoption-standalone-to-crc-ceph-provider SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ openstack-operator-tempest-multinode SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ openstack-operator-edpm-baremetal-minor-update SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider

[softwarefactory-project-zuul]

Build failed (check pipeline). Post recheck (without leading slash)
to rerun all jobs. Make sure the failure cause has been resolved before
you rerun jobs.

https://softwarefactory-project.io/zuul/t/rdoproject.org/buildset/5349812a78e5482bb23165ea6bae93db

❌ openstack-k8s-operators-content-provider FAILURE in 7m 47s
⚠️ podified-multinode-edpm-deployment-crc SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ cifmw-crc-podified-edpm-baremetal SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ adoption-standalone-to-crc-ceph-provider SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ openstack-operator-tempest-multinode SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider
⚠️ openstack-operator-edpm-baremetal-minor-update SKIPPED Skipped due to failed job openstack-k8s-operators-content-provider

[openshift-ci]

@auniyal61: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/precommit-check	5ff81e0	link	true	/test precommit-check
ci/prow/openstack-operator-build-deploy-kuttl-4-18	5ff81e0	link	true	/test openstack-operator-build-deploy-kuttl-4-18

Full PR test history. Your PR dashboard.

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