* Specify public key for each inactive shard in config

Signed-off-by: Priya Wadhwa <priya@chainguard.dev>

* Updated the integration test

Signed-off-by: Priya Wadhwa <priya@chainguard.dev>

* Add debugging to the sharding test

Signed-off-by: Priya Wadhwa <priya@chainguard.dev>

* Add debugging

Signed-off-by: Priya Wadhwa <priya@chainguard.dev>