[8.16] chore(NA): disable screenshots on package testing (#178162) (#207278)

# Backport

This will backport the following commits from `main` to `8.16`:
- [chore(NA): disable screenshots on package testing
(#178162)](#178162)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
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<!--BACKPORT [{"author":{"name":"Tiago
Costa","email":"[email protected]"},"sourceCommit":{"committedDate":"2025-01-21T03:29:41Z","message":"chore(NA):
disable screenshots on package testing (#178162)\n\nI don't think we
need this setting permanently on and it can be enabled\r\nas needed for
debugging
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disable screenshots on package
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disable screenshots on package testing (#178162)\n\nI don't think we
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debugging
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disable screenshots on package testing (#178162)\n\nI don't think we
need this setting permanently on and it can be enabled\r\nas needed for
debugging
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BACKPORT-->

Co-authored-by: Tiago Costa <[email protected]>

Author: kibanamachine

.buildkite/scripts/steps/package_testing/test.sh

@@ -5,8 +5,9 @@ set -euo pipefail
 source "$(dirname "$0")/../../common/util.sh"
 .buildkite/scripts/bootstrap.sh
 
-# temporary adding this to get screenshots
-is_test_execution_step
+# temporary enable this to get screenshots on package testing failures
+#
+#is_test_execution_step
 
 echo "--- Package Testing for $TEST_PACKAGE"