Permission to execute procedure - SQL

I have an RDS instance, with MS SQL Server database.

I need to grant permissions to a user in my application to execute some important procedures. However, even connected to the RDS instance with the admin user, I cannot grant these permissions.

The query I need to run is the following:

USE [master]
GO
sp_configure 'Advanced Options', 1
GO
RECONFIGURE
GO
sp_configure 'Ole Automation Procedures', 1
GO
RECONFIGURE
GO
GRANT EXECUTE ON sys.sp_OACreate TO [usr_apis]
GRANT EXECUTE ON sys.sp_OADestroy TO [usr_apis]
GRANT EXECUTE ON sys.sp_OAGetErrorInfo TO [usr_apis]
GRANT EXECUTE ON sys.sp_OAGetProperty TO [usr_apis]
GRANT EXECUTE ON sys.sp_OAMethod TO [usr_apis]
GRANT EXECUTE ON sys.sp_OASetProperty TO [usr_apis]
GRANT EXECUTE ON sys.sp_OAStop TO [usr_apis]

and when running the query above, the following errors are returned:

Msg 15247, Level 16, State 1, Procedure sp_configure, Line 105 [Batch Start Line 2]
User does not have permission to perform this action.
Msg 5812, Level 14, State 1, Line 5
You do not have permission to run the RECONFIGURE statement.
Msg 15247, Level 16, State 1, Procedure sp_configure, Line 105 [Batch Start Line 6]
User does not have permission to perform this action.
Msg 5812, Level 14, State 1, Line 9
You do not have permission to run the RECONFIGURE statement.
Msg 15151, Level 16, State 1, Line 11
Cannot find the user 'usr_apis', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 12
Cannot find the user 'usr_apis', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 13
Cannot find the user 'usr_apis', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 14
Cannot find the user 'usr_apis', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 15
Cannot find the user 'usr_apis', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 16
Cannot find the user 'usr_apis', because it does not exist or you do not have permission.
Msg 15151, Level 16, State 1, Line 17
Cannot find the user 'usr_apis', because it does not exist or you do not have permission.

How can I grant the user of my application the necessary permissions to execute these procedures?

Thanks.