feat: added alert customizations in subchart, backward compatibility …

[FedorProshin]

…in values yaml for alerts, integration unit test for alerts

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Optimization
• Documentation Update

Description

TDB

Related Tickets & Documents

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QA Instructions, Screenshots, Recordings

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on the devices and browsers this has been tested on, as well as any relevant
images for UI changes.

Breaking Change checklist

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• Does it change any deployment parameters, logic of their working or rename them?
• Did update from previous version tested with the same set of deployment parameters?

Added/updated tests?

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  have not been included
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[FedorProshin]

For kubernetes and self monitoring alerts - Netcracker/qubership-monitoring-operator#175
For pgskipper alerts - Netcracker/pgskipper-operator#137
For kafka alerts - Netcracker/qubership-kafka#114
For Zookeeper alerts - #89
For OpenSearch alerts - Netcracker/qubership-opensearch#210
For Mistral alerts - https://github.com/FedorProshin/qubership-mistral-operator (original repo archived, so cant create PR)