Add CODEOWNERS entries for workflow_streams

Author: brianstrauch

.github/CODEOWNERS

@@ -10,14 +10,15 @@
 # other than the SDK team. For each one, we add the owning team,
 # as well as @temporalio/sdk, so the SDK team can continue to
 # manage repo-wide concerns.
-/temporalio/contrib/common/                 @temporalio/ai-sdk     @temporalio/sdk
 /temporalio/contrib/google_adk_agents/      @temporalio/ai-sdk     @temporalio/sdk
 /temporalio/contrib/langgraph/              @temporalio/ai-sdk     @temporalio/sdk
 /temporalio/contrib/langsmith/              @temporalio/ai-sdk     @temporalio/sdk
 /temporalio/contrib/openai_agents/          @temporalio/ai-sdk     @temporalio/sdk
 /temporalio/contrib/strands/                @temporalio/ai-sdk     @temporalio/sdk
+/temporalio/contrib/workflow_streams/       @temporalio/ai-sdk     @temporalio/sdk
 /tests/contrib/google_adk_agents/           @temporalio/ai-sdk     @temporalio/sdk
 /tests/contrib/langgraph/                   @temporalio/ai-sdk     @temporalio/sdk
 /tests/contrib/langsmith/                   @temporalio/ai-sdk     @temporalio/sdk
 /tests/contrib/openai_agents/               @temporalio/ai-sdk     @temporalio/sdk
 /tests/contrib/strands/                     @temporalio/ai-sdk     @temporalio/sdk
+/tests/contrib/workflow_streams/            @temporalio/ai-sdk     @temporalio/sdk