feat: update images to Spock 5.0.7

[tsivaprasad]

Summary

This PR updates the pgEdge image tags for Postgres 16.13, 17.9, and 18.3 to use Spock 5.0.7, which includes native PG17+ logical slot failover support.

Changes

• Update image tags for PG 16.13, 17.9, and 18.3 from spock5.0.6-standard-1 to spock5.0.7-standard-1

• Updated TestWholeCluster to call spock.wait_for_sync_event only on Patroni primaries, not hot standbys — Spock 5.0.7 tightened this behavior and correctly returns false on standbys where no Spock subscription runs

Testing

• Updated tests

Checklist

• Tests added or updated

PLAT-572

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1c59347b-4131-430c-9ea6-5ba76073a93e

📥 Commits

Reviewing files that changed from the base of the PR and between 2c0c395 and 849969f.

📒 Files selected for processing (3)

• changes/unreleased/Added-20260509-000000.yaml
• e2e/whole_cluster_test.go
• server/internal/orchestrator/swarm/images.go

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📝 Walkthrough

Walkthrough

This PR upgrades Spock from version 5.0.6 to 5.0.7 across three PostgreSQL versions (16.13, 17.9, 18.3). Docker image tags in the orchestrator configuration are updated, the E2E cluster test is refactored to use matcher-based connection options for replication validation, and a changelog entry documents the addition.

Changes

Spock 5.0.7 Upgrade

Layer / File(s)	Summary
Docker Image Configuration server/internal/orchestrator/swarm/images.go	pgEdge image tags are updated from spock5.0.6 to spock5.0.7 for PostgreSQL 16.13, 17.9, and 18.3 version mappings.
E2E Test Refactoring e2e/whole_cluster_test.go	TestWholeCluster replication validation is refactored to use ConnectionOptions with WithNode and WithRole("primary") matchers, replacing per-instance iteration, and validates replication sync before assertion.
Release Documentation changes/unreleased/Added-20260509-000000.yaml	New YAML change record documents the addition of Spock 5.0.7 support on PostgreSQL 16.13, 17.9, and 18.3.

Poem

🐰 A patch hops in, from point-six to seven,
Three Postgres versions reach version heaven,
With Docker tags set and tests aligned,
Spock's newer self leaves old bugs behind,
The cluster replicates, replication sweet!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change of updating Docker images to Spock 5.0.7, which is clearly reflected in all three modified files.
Description check	✅ Passed	The description covers all required sections with sufficient detail: Summary explains the purpose, Changes lists the modifications, Testing confirms test updates, and the Checklist indicates tests were updated. Issue is linked (PLAT-572). All essential information is present.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch PLAT-572-update-control-plane-to-support-spock-5-0-7

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[codacy-production]

Up to standards ✅

🟢 Issues 0 issues

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🟢 Metrics 0 duplication

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