Fix some of CI tests. Add message_id parameter. Fix _id and message_id types to int32.

broker/src/asapo_broker/database/database.go

broker/src/asapo_broker/server/get_commands_test.go

broker/src/asapo_broker/server/process_request_test.go

common/cpp/unittests/data_structs/test_data_structs.cpp

examples/consumer/getnext_python/check_linux.sh

examples/consumer/getnext_python/getnext.py

...ttests/request_handler/test_request_handler_db_writer.cpp

tests/automatic/broker/get_last/check_linux.sh

tests/automatic/broker/get_next/check_linux.sh

tests/automatic/consumer/consumer_api/check_linux.sh

tests/automatic/support/getnext/check_linux.sh