fix: add copyright, trigger release (#151)

Author: MIchaelMainer

python/packages/microsoft_agents_m365copilot_core/microsoft_agents_m365copilot_core/__init__.py

@@ -1,3 +1,8 @@
+# ------------------------------------
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+# -----------------------------------
+
 from .src import (
     SDK_VERSION,
     APIVersion,