Fix UB in va_start with argument undergoing default promotion

For more information refer to:

https://wiki.sei.cmu.edu/confluence/display/cplusplus/EXP58-CPP.+Pass+an+object+of+the+correct+type+to+va_start

src/lib/c_wrapper.cpp

@@ -309,7 +309,7 @@ ADM_define_data_operation(ADM_server_t server, ADM_job_t job, const char* path,
 ADM_return_t
 ADM_connect_data_operation(ADM_server_t server, ADM_job_t job,
                            ADM_dataset_t input, ADM_dataset_t output,
-                           bool should_stream, ...) {
+                           int should_stream, ...) {
 
     const scord::server srv{server};
 
@@ -336,7 +336,7 @@ ADM_finalize_data_operation(ADM_server_t server, ADM_job_t job,
 ADM_return_t
 ADM_link_transfer_to_data_operation(ADM_server_t server, ADM_job_t job,
                                     ADM_data_operation_t op,
-                                    ADM_transfer_t transfer, bool should_stream,
+                                    ADM_transfer_t transfer, int should_stream,
                                     ...) {
 
     const scord::server srv{server};

src/lib/scord/scord.h

@@ -401,7 +401,7 @@ ADM_define_data_operation(ADM_server_t server, ADM_job_t job, const char* path,
 ADM_return_t
 ADM_connect_data_operation(ADM_server_t server, ADM_job_t job,
                            ADM_dataset_t input, ADM_dataset_t output,
-                           bool should_stream, ...);
+                           int should_stream, ...);
 
 
 /**
@@ -441,7 +441,7 @@ ADM_finalize_data_operation(ADM_server_t server, ADM_job_t job,
 ADM_return_t
 ADM_link_transfer_to_data_operation(ADM_server_t server, ADM_job_t job,
                                     ADM_data_operation_t op,
-                                    ADM_transfer_t transfer, bool should_stream,
+                                    ADM_transfer_t transfer, int should_stream,
                                     ...);