chore(user-agent): support patching botocore session

aws_lambda_powertools/shared/user_agent.py

@@ -108,6 +108,31 @@ def register_feature_to_session(session, feature):
         logger.debug(f"session passed in doesn't have a event system:{e}")
 
 
+# Add feature user-agent to given sdk botocore.session.Session
+def register_feature_to_botocore_session(botocore_session, feature):
+    """
+    Register the given feature string to the event system of the provided boto3 session
+    and append the feature to the User-Agent header of the request
+
+    Parameters
+    ----------
+    botocore_session : botocore.session.Session
+        The botocore session to which the feature will be registered.
+    feature : str
+        The feature string to be appended to the User-Agent header, e.g., "data-masking" in Powertools.
+
+    Raises
+    ------
+    AttributeError
+        If the provided session does not have an event system.
+
+    """
+    try:
+        botocore_session.register(TARGET_SDK_EVENT, _create_feature_function(feature))
+    except AttributeError as e:
+        logger.debug(f"botocore session passed in doesn't have a event system:{e}")
+
+
 # Add feature user-agent to given sdk boto3.client
 def register_feature_to_client(client, feature):
     """