Fix service bus client lifecycle

[JC-wk]

What is being addressed

inconsistent ServiceBusClient lifecycle management in deployment_status_updater.py, airlock_request_status_update.py, and runner.py.
key message listeners repeatedly instantiate ServiceBusClient inside infinite loops but discard the instances without calling close() or wrapping them in context managers. This can leak connection sockets and AMQP channels under transient reconnect loops.

How is this addressed

• Prevents connection socket leaks: ServiceBusClient instances are now properly closed using async context managers
  Prevents AMQP channel leaks: Ensures channels are cleaned up even under transient reconnect scenarios
  Consistent pattern: All three files now follow the same best practice of using
• Update CHANGELOG.md
• Increment version

[github-actions]

Unit Test Results

673 tests   673 ✅  8s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit 93e86b8.

♻️ This comment has been updated with latest results.

[Copilot]

Pull request overview

This PR fixes inconsistent Azure Service Bus client lifecycle handling across the API service-bus listeners and the resource processor runner to reduce the risk of leaking sockets/AMQP channels during long-running polling and reconnect loops.

Changes:

• Wrap ServiceBusClient usage in async context managers so clients are deterministically closed.
• Add backoff (asyncio.sleep(10)) on connection/unknown exceptions in the runner and service-bus listeners.
• Update runner unit tests to account for the async context manager usage; add a changelog entry.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
api_app/service_bus/deployment_status_updater.py	Uses async with ServiceBusClient(...) to ensure the client is closed across reconnect cycles.
api_app/service_bus/airlock_request_status_update.py	Uses async with ServiceBusClient(...) to ensure the client is closed; adjusts retry sleeps.
resource_processor/vmss_porter/runner.py	Uses async with ServiceBusClient(...) for proper client teardown; adds retry sleeps on exceptions.
resource_processor/tests_rp/test_runner.py	Updates mocks to handle the ServiceBusClient async context manager behavior.
CHANGELOG.md	Adds an unreleased BUG FIXES entry for the lifecycle fix.

[rudolphjacksonm]

/test-extended

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/28157965154 (with refid 93594175)

(in response to this comment from @rudolphjacksonm)

[maxmartin-cgi]

/test-extended

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/28224500075 (with refid 93594175)

(in response to this comment from @maxmartin-cgi)

[maxmartin-cgi]

/test-extended

[github-actions]

🤖 pr-bot 🤖

🏃 Running extended tests: https://github.com/microsoft/AzureTRE/actions/runs/28243761740 (with refid 93594175)

(in response to this comment from @maxmartin-cgi)