[Maintenance] Stack update: Add configuration for pgAdmin automatic db connection

[devtobi]

Relevant component

No response

Problem description (optional)

See https://github.com/it-at-m/refarch-templates/issues/323

Desired solution

https://github.com/it-at-m/refarch-templates/pull/324

Considered alternatives (optional)

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Additional context (optional)

No response

No duplicate

• [X] I confirm that this issue is not a duplicate

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• [X] I agree to follow this project's Code of Conduct

[simonhir]

Doesn't contain pgAdmin as not synced with refarch-tempaltes anymore.