Update CODEOWNERS to include tooling approvers for additional directories (#133)

* Update CODEOWNERS to include tooling approvers for additional directories

* Update .github/CODEOWNERS

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Johan Broberg <johanb@microsoft.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 3 people

.github/CODEOWNERS

@@ -2,4 +2,7 @@
 * @microsoft/agent365-approvers
 /.github/ @microsoft/agent365-approvers
 /libraries/microsoft-agents-a365-observability-*/ @microsoft/agent365-observability-approvers
-/tests/observability/ @microsoft/agent365-observability-approvers
+/tests/observability/ @microsoft/agent365-observability-approvers
+/libraries/microsoft-agents-a365-notifications/ @microsoft/agent365-tooling-approvers
+/libraries/microsoft-agents-a365-tooling*/ @microsoft/agent365-tooling-approvers
+/tests/tooling/ @microsoft/agent365-tooling-approvers