Add Configuration Kind spec for secrets

## Expected Behavior

Add support for Component configuration to support secrets.

https://github.com/dapr/java-sdk/blob/master/testcontainers-dapr/src/main/java/io/dapr/testcontainers/Configuration.java#L24

https://docs.dapr.io/operations/configuration/configuration-overview/#scope-secret-store-access

## Actual Behavior

## Steps to Reproduce the Problem

## Release Note

RELEASE NOTE:

Start with the referenced testcontainers-dapr/src/main/java/io/dapr/testcontainers/Configuration.java entry point and the Dapr configuration scope-secret-store-access documentation. Determine how the Java SDK represents Component configuration and what secrets support requires; done means the Configuration Kind spec supports the documented secret-store access behavior.

Scritto dal modello di indicizzazione a partire dal testo della issue.