K8SPG-837 improve image building process

[hors]

CHANGE DESCRIPTION

Solution:

• add possibility of setting the base image via the build argument

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?

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 PG version?
• Does the change support oldest and newest supported Kubernetes version?

[JNKPercona]

Test Name	Result	Time
backup-enable-disable	passed	00:06:28
custom-envs	passed	00:18:57
custom-extensions	passed	00:15:34
custom-tls	passed	00:06:46
database-init-sql	passed	00:02:03
demand-backup	passed	00:24:23
finalizers	passed	00:03:47
init-deploy	passed	00:02:47
monitoring	passed	00:07:19
monitoring-pmm3	passed	00:08:10
one-pod	passed	00:05:59
operator-self-healing	passed	00:08:01
pgvector-extension	passed	00:03:26
pitr	passed	00:12:27
scaling	passed	00:04:44
scheduled-backup	passed	00:25:52
self-healing	passed	00:08:56
sidecars	passed	00:02:32
start-from-backup	passed	00:10:28
tablespaces	passed	00:07:52
telemetry-transfer	passed	00:03:29
upgrade-consistency	passed	00:05:22
upgrade-minor	passed	00:06:03
users	passed	00:04:38

Summary	Value
Tests Run	24/24
Job Duration	01:26:26
Total Test Time	03:26:13

commit: 73e1608
image: perconalab/percona-postgresql-operator:PR-1422-73e1608bd