Renames all OAuth providers that inherit from OAuthDCRProxy to explicitly
include "DCR" in their names, clarifying their Dynamic Client Registration
implementation approach.
Changes:
- GitHubProvider → GitHubDCRProvider
- GoogleProvider → GoogleDCRProvider
- AzureProvider → AzureDCRProvider
- WorkOSProvider → WorkOSDCRProvider
- Auth0Provider → Auth0DCRProvider
- AWSCognitoProvider → AWSCognitoDCRProvider
All old names remain as deprecated aliases with warnings that respect
settings.deprecation_warnings. Environment variables updated to include
_DCR_ with backwards compatibility via env_prefixes.
* Use anyio as testing backend
* Remove asyncio markers
* Update streamable http tests
* Replace all subprocess tests
* Replace anyio task groups with asyncio context managers in tests
- Convert run_server_async from anyio task group pattern to asyncio.create_task with async context manager
- Remove task_group fixture from conftest
- Update all test fixtures to use async with run_server_async pattern
- Remove TaskGroup imports from all test files
- Tests now work with pytest-asyncio instead of pytest-anyio
* Update test_github_provider_integration.py
