chore(deps): update dependency ops to v3.8.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ops (changelog)	==3.7.0 → ==3.8.0

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Release Notes

canonical/operator (ops)

v3.8.0

Compare Source

Features

• Note the socket path in Pebble tracing spans (#​2555)

Fixes

• Treat remote unit zero as explicit (#​2454)
• Ensure resources are cleaned up in testing.Context (#​2506)
• Close SQLite storage in Harness.cleanup() (#​2507)
• Restore sys.breakpointhook on _Manager teardown (#​2542)
• Avoid errors in finalisation due to already-closed websocket (#​2548)
• Use the correct value for JUJU_HOOK_NAME when objects contain dashes (#​2552)
• Avoid double-closing the framework in testing teardown (#​2561)
• Don't leak exec I/O threads when waiting on the change fails (#​2558)
• Take Pebble defaults into consideration when consistency checking Checks (#​2567)
• Tear down Runtime.exec() when the charm raises (#​2581)

Documentation

• Fix small issues in K8s tutorial (#​2540)
• Document user-secret observer lifecycle and secret-changed semantics (#​2522)
• Replace CoC with link to Ubuntu Code of Conduct (#​2564)
• Add a small note about -W error in the unit test how-to (#​2560)
• Add doc about subordinate charms (#​2455)
• Add 26.04 to the versions page and mark 2.23 as LTS (#​2517)
• Clarify storage-detaching applies to both machine and K8s charms (#​2554)
• Add guidance about names of workload-less charms (#​2496)
• Fix first unit tests command in machine charm tutorial (#​2574)
• Extend security explanation page to cover SEC0030 V1.3 gaps (#​2571)
• Move docs to canonical.com/juju/docs/ops (#​2545)
• Fix docstring of _Event._is_action_event (#​2580)

Tests

• Treat warnings as errors when running unit tests (#​2541)
• Fix mock_temp_dir fixture's open() patch (#​2553)
• Add integration tests for ops.hookcmds (#​2520, #​2562)
• Fix integration test flakes on Juju 3 k8s and Juju 4 secrets (#​2584)

Refactoring

• Avoid yaml.load() to silence security scanner false positives (#​2523)
• Replace jsonpatch with an inline dict-diff (#​2578)
• Move the otlp-json package to be a regular ops-tracing module (#​2585)
• Distinguish between init and attribute types in testing state classes (#​2331)

CI

• Remove obsolete containerd workaround from integration workflow (#​2519)
• Use the sys.monitoring coverage core (#​2518)

v3.7.1

Compare Source

Fixes

• Pass the endpoint name through to relation-get (#​2499)

Documentation

• Add a how-to guide focused on debugging charms (#​2386)
• Add metadata descriptions to the debug and public listing how-to guides (#​2415)
• Update tutorials and how-tos to use pytest-jubilant (#​2406)
• Add how-to guide about CI (#​2405)
• Test COS Lite integration with the k8s-5-observe charm (#​2411)
• Update tutorials and example charms to match Charmcraft 4.2 (#​2407)
• Update api_demo_server version to support non-amd64 architectures (#​2448)
• Pin to 24.04 when launching VMs (#​2457)
• Explain how to remove errored apps in k8s tutorial (#​2445)
• Align example charms with pre-release Charmcraft (#​2444)
• Add how-to guide for naming and initialising a charm (#​2449)
• Add a how-to guide about publishing a charm (#​2420)
• In the tutorials, recommend initing from GitHub (#​2459)
• Fix integration tests of K8s tutorial charms (#​2471)
• Replace the PGP key with the upstream page in SECURITY.md (#​2474)
• Bump api_demo_server to 1.0.4 in docs and example charms (#​2473)
• Refresh the machine workloads how-to (#​2443)
• Add COS Lite integration tests to K8s tutorial (#​2478)
• Add git workflow guidance for contributors (#​2453)
• Update profile guidance in HACKING.md (#​2486)
• Explain how to add an icon to a charm (#​2451)
• Adopt latest Charmcraft profiles, incl juju_setup marker on integration tests (#​2497)
• Improve support for agents, with Sphinx Stack upgrade (#​2495)
• Improve how-to about managing files in containers (#​2470)
• Improve Container.pull docs to avoid leaky files (#​2508)
• Clarify Secret manage-permission error in testing.State (#​2510)

Tests

• Extend the type checking of the ops-scenario tests (#​2234, #​2235)
• Wait on ExecProcess after expected TypeError (#​2509)

CI

• Drop external action for checking PR title format (#​2388)
• Add a dependabot cooldown (#​2413)
• Sort the directory entries when updating the best practices list (#​2422)
• Configure dependabot for the example charms (#​2426)
• Pin zizmor and TIOBE tool versions in pyproject.toml rather than the workflow (#​2437)
• Add 26.04 to smoke tests and remove outdated metadata.yaml (#​2450)
• Use charmcraft test for example charm (#​2440)
• Add workflow_dispatch trigger to workflows where it is useful (#​2468)
• Ensure the correct job is selected in updating charm pins (#​2500)

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