[COMMIT scylla-cluster-tests master] fix(loader): update loader ami with tablet aware driver

[Commit Bot]

From: Lukasz Sojka <lukasz...@scylladb.com>
Committer: Israel Fruchter <israel....@gmail.com>
Branch: master

fix(loader): update loader ami with tablet aware driver

Loader ami used old c-s which didn't have java driver with tablets
support.

Created new image with c-s from 2024.2.0-rc0 and updated scylla-bench to
0.1.21.

---
diff --git a/defaults/aws_config.yaml b/defaults/aws_config.yaml
--- a/defaults/aws_config.yaml
+++ b/defaults/aws_config.yaml
@@ -7,7 +7,7 @@ user_credentials_path: '~/.ssh/scylla_test_id_ed25519'
instance_type_loader: 'c6i.xlarge'
instance_type_monitor: 't3.large'
# manual on creating loader AMI's: see docs/new_loader_ami.md
-ami_id_loader: 'scylla-qa-loader-ami-v20-ubuntu22'
+ami_id_loader: 'scylla-qa-loader-ami-v21-ubuntu22' # versions: c-s 2024.2.0-rc0, s-b 0.1.21
# manual on updating monitor images see: docs/monitoring-images.md
ami_id_monitor: 'scylladb-monitor-4-7-2-2024-05-13t08-38-47z'