K8SPXC-1687 fix copy-backup.sh script

[hors]

CHANGE DESCRIPTION

Problem:
Short explanation of the problem.

Cause:
Short explanation of the root cause of the issue if applicable.

Solution:
Short explanation of the solution we are providing with this PR.

CHECKLIST

Jira

• Is the Jira ticket created and referenced properly?
• Does the Jira ticket have the proper statuses for documentation (Needs Doc) and QA (Needs QA)?
• Does the Jira ticket link to the proper milestone (Fix Version field)?

Tests

• Is an E2E test/test case added for the new feature/change?
• Are unit tests added where appropriate?
• Are OpenShift compare files changed for E2E tests (compare/*-oc.yml)?

Config/Logging/Testability

• Are all needed new/changed options added to default YAML files?
• Are all needed new/changed options added to the Helm Chart?
• Did we add proper logging messages for operator actions?
• Did we ensure compatibility with the previous version or cluster upgrade process?
• Does the change support oldest and newest supported PXC version?
• Does the change support oldest and newest supported Kubernetes version?

[github-actions]

[shellcheck (suggestion)] _{reported by reviewdog 🐶}

Suggested change

	env -i ${CREDENTIALS} "${xbcloud}" get "${backup_path}" --parallel=10 1>"$dest_dir/xtrabackup.stream" 2>"$dest_dir/transfer.log"
	env -i "${CREDENTIALS}" "${xbcloud}" get "${backup_path}" --parallel=10 1>"$dest_dir/xtrabackup.stream" 2>"$dest_dir/transfer.log"

[JNKPercona]

Test Name	Result	Time
affinity-8-0	passed	00:05:33
auto-tuning-8-0	passed	00:18:00
cross-site-8-0	passed	00:32:48
custom-users-8-0	failure	00:07:58
demand-backup-cloud-8-0	passed	00:56:05
demand-backup-encrypted-with-tls-8-0	passed	00:42:55
demand-backup-8-0	passed	00:40:12
demand-backup-flow-control-8-0	passed	00:09:50
demand-backup-parallel-8-0	passed	00:08:58
demand-backup-without-passwords-8-0	passed	00:18:26
haproxy-5-7	passed	00:13:01
haproxy-8-0	passed	00:12:59
init-deploy-5-7	passed	00:15:26
init-deploy-8-0	passed	00:15:40
limits-8-0	passed	00:11:39
monitoring-2-0-8-0	passed	00:22:51
monitoring-pmm3-8-0	passed	00:16:55
one-pod-5-7	passed	00:13:15
one-pod-8-0	passed	00:13:32
pitr-8-0	passed	00:47:00
pitr-gap-errors-8-0	passed	00:53:28
proxy-protocol-8-0	passed	00:09:04
proxysql-sidecar-res-limits-8-0	passed	00:08:05
pvc-resize-5-7	passed	00:15:49
pvc-resize-8-0	passed	00:14:08
recreate-8-0	passed	00:16:06
restore-to-encrypted-cluster-8-0	passed	00:25:01
scaling-proxysql-8-0	passed	00:08:02
scaling-8-0	passed	00:10:13
scheduled-backup-5-7	failure	00:42:12
scheduled-backup-8-0	passed	01:01:32
security-context-8-0	passed	00:25:17
smart-update1-8-0	passed	00:33:00
smart-update2-8-0	passed	00:36:12
storage-8-0	passed	00:10:08
tls-issue-cert-manager-ref-8-0	passed	00:08:24
tls-issue-cert-manager-8-0	passed	00:10:46
tls-issue-self-8-0	passed	00:12:49
upgrade-consistency-8-0	passed	00:10:25
upgrade-haproxy-5-7	passed	00:27:56
upgrade-haproxy-8-0	passed	00:22:59
upgrade-proxysql-5-7	passed	00:16:17
upgrade-proxysql-8-0	passed	00:21:06
users-5-7	passed	00:25:20
users-8-0	passed	00:24:44
validation-hook-8-0	passed	00:01:24
We run 46 out of 46		16:13:55

commit: 362eadd
image: perconalab/percona-xtradb-cluster-operator:PR-2160-362eaddc