chore: update cross pipeline with new test results structure

Now test_results is one level more nested than before

Signed-off-by: Egor Lazarchuk <yegorlz@amazon.co.uk>

Author: ShadowCurse

.buildkite/pipeline_cross.py

@@ -31,8 +31,8 @@
     commands = [
         "./tools/devtool -y test --no-build -- -m nonci -n4 integration_tests/functional/test_snapshot_phase1.py",
         # punch holes in mem snapshot tiles and tar them so they are preserved in S3
-        "find test_results/test_snapshot_phase1 -type f -name mem |xargs -P4 -t -n1 fallocate -d",
-        "mv -v test_results/test_snapshot_phase1 snapshot_artifacts",
+        "find test_results/test_snapshot_phase1/test_snapshot_phase1 -type f -name mem |xargs -P4 -t -n1 fallocate -d",
+        "mv -v test_results/test_snapshot_phase1/test_snapshot_phase1 snapshot_artifacts",
         "mkdir -pv snapshots",
         "tar cSvf snapshots/{instance}_{kv}.tar snapshot_artifacts",
     ]