[TEST] Reduce forecast disk space requirement for tests
The setting that reduces the disk space requirement
for the forecasting integration tests was accidentally
removed in when files were moved around.  This
change simply adds back the setting that existed before
that.
@@ -47,6 +47,7 @@ integTestCluster {
setting 'xpack.security.transport.ssl.verification_mode', 'certificate'
setting 'xpack.security.audit.enabled', 'true'
setting 'xpack.license.self_generated.type', 'trial'
+ setting 'xpack.ml.min_disk_space_off_heap', '200mb'
keystoreSetting 'bootstrap.password', 'x-pack-test-password'
keystoreSetting 'xpack.security.transport.ssl.secure_key_passphrase', 'testnode'
