chore(memory): upgrade redis agent memory sdk

[nkanu17]

Summary

• Prepare the adk-redis 0.0.9 release.
• Raise the redis-agent-memory requirement from >=0.0.4 to >=0.2.0, the latest PyPI release.
• Update the README, managed setup guide, backend specification, and changelog.

0.0.9 release notes

This release consolidates the three previously merged feature PRs:

• Stable cache entry IDs and targeted invalidation through delete_by_id().
• Per-invocation memory-tool user resolution through ADK tool_context, including ownership validation for mutations.
• Tenant-scoped client IDs for idempotent CreateMemoryTool writes.

It also upgrades the managed Redis Agent Memory SDK requirement to redis-agent-memory>=0.2.0 and prevents self-hosted warnings from logging supplied application IDs.

Compatibility verification

Verified redis-agent-memory 0.2.0 against every SDK surface used by adk-redis:

• AgentMemory client construction
• Session event creation, retrieval, listing, and deletion
• Long-term memory search, create, retrieve, update, and bulk delete
• Memory tools using the corresponding async SDK methods

No application code changes were required because the used method signatures remain compatible.

Validation

• Package version reports 0.0.9
• Source distribution and wheel build successfully
• make format
• Ruff
• mypy
• Full pytest suite: 143 passed, 10 live-service tests skipped because external Redis services and credentials were not configured
• uv lock --check
• mkdocs build

[Copilot]

Pull request overview

This PR updates adk-redis to require a newer managed Redis Agent Memory SDK (redis-agent-memory>=0.2.0) and aligns user-facing documentation with the new minimum version.

Changes:

• Bump the memory optional dependency requirement from redis-agent-memory>=0.0.4 to >=0.2.0.
• Update README and managed memory setup documentation to reflect the new minimum version.
• Update the Redis Agent Memory backend specification doc to match the new dependency floor.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
README.md	Documents the new minimum redis-agent-memory version installed by the memory extra for the managed backend.
pyproject.toml	Raises the redis-agent-memory minimum version in the memory optional dependencies.
docs/user_guide/how_to_guides/managed_memory_setup.md	Updates managed setup prerequisites to reflect redis-agent-memory>=0.2.0.
docs/specs/redis-agent-memory-default.md	Updates the backend dependency specification to redis-agent-memory>=0.2.0.

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[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.