fix: update testAppSpec.json to the right format

[ttypic]

Right now ably-java has copy of common's test app spec with some modifications, but the format may change we shouldn't rely on it, and use actual format instead

for now as a quick fix we update format for presence

Summary by CodeRabbit

• Tests
  • Consolidated duplicate test data entries to improve test resource efficiency and reduce redundancy in test configurations.

[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: 38a8a537-f1d5-4597-8361-7b498366137a

📥 Commits

Reviewing files that changed from the base of the PR and between 5c75ea3 and 7568d59.

📒 Files selected for processing (1)

• lib/src/test/resources/local/testAppSpec.json

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Walkthrough

This change consolidates duplicate channels entries in a test data file by removing redundant channel wrappers and merging their presence objects into a single consolidated presence array, reducing file redundancy.

Changes

Cohort / File(s)	Summary
Test Data Consolidation lib/src/test/resources/local/testAppSpec.json	Removes duplicate persisted:restpresence_persisted channel entries and consolidates presence objects (client_string_0 through client_string_3) into a single unified presence array within one channel definition.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 Hops through test files with glee,
Duplicate channels? Not for me!
Consolidated with care and grace,
One presence array, its rightful place! 🌟

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: updating testAppSpec.json to the correct format for the presence test specification.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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 unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix-presence-test

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