Add new app config parameters

[AliceBilc]

Checklist

• Test your changes as thoroughly as possible before you commit them. Preferably, automate your test by unit/integration tests.
• Make sure mvn -P integration-test clean verify runs for the whole project and, if you touched any code for a service in the services folder, ensure it can be run with spring-boot:run

Description

[AliceBilc]

@mlenkeit, we're already using this parameter in the filter method https://github.com/corona-warn-app/cwa-server/blob/main/services/submission/src/main/resources/application.yaml#L57
Do you think it would be a good ideea to change here the name and the value?

[sonarcloud]

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