Collect SPMI collections as part of Fuzzlyn pipeline (#97154)

This will include SPMI collections recorded over the reduction process
in the zip artifact produced by the Fuzzlyn runs.

src/coreclr/scripts/fuzzlyn_run.py

@@ -135,10 +135,13 @@ def run(self):
  if reduce_this:
  print("Reducing {}".format(ex['Seed']))
  output_path = path.join(self.examples_dir, str(ex["Seed"]) + ".cs")
+ spmi_collections_path = path.join(self.examples_dir, str(ex["Seed"]) + "_spmi")
+ os.mkdir(spmi_collections_path)
  cmd = [self.fuzzlyn_path,
  "--host", self.host_path,
  "--reduce",
  "--seed", str(ex['Seed']),
+ "--collect-spmi-to", spmi_collections_path,
  "--output", output_path]
  run_command(cmd)
  if path.exists(output_path):