[updatecli] update elastic stack version for testing 8.18.4-493c1c39-SNAPSHOT (#5116)

* chore: Update snapshot.yml

Made with ❤️️ by updatecli

* chore: Update snapshot.yml

Made with ❤️️ by updatecli

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

dev-tools/integration/.env

@@ -1,6 +1,6 @@
 # If you use change this version without a pinned one, please update
 # .ci/bump-elastic-stack-snapshot.yml or .github/workflows/bump-golang.yml
-ELASTICSEARCH_VERSION=8.18.4-a2fd392a-SNAPSHOT
+ELASTICSEARCH_VERSION=8.18.4-493c1c39-SNAPSHOT
 ELASTICSEARCH_USERNAME=elastic
 ELASTICSEARCH_PASSWORD=changeme
 TEST_ELASTICSEARCH_HOSTS=localhost:9200