HPCC-24130 Add 'spray' and 'copy' to the supercopy.ecl test

'spray' signifies that the test interacts with dfuserver.
In a cloud setup, this is not currently supported, so the 'spray'
class of tests is skipped when running the regression suite.

Signed-off-by: Jake Smith <jake.smith@lexisnexisrisk.com>

testing/regress/ecl/supercopy.ecl

@@ -19,6 +19,8 @@
 
 //nothor
 //class=superfile
+//class=spray
+//class=copy
 
 import std.system.thorlib;
 import Std.File AS FileServices;