fix: correct ports for indexer & processor in sovereign env

[cemalkilic]

Description

This pull request updates the environment variables for the indexer and processor containers' exposed ports in the sovereign environment. The internal ports for these containers are now always set to 8080, while the external ports on the host machine remain hardcoded to 8081 and 8082.

Changes Made:

• Updated the environment variables (PROTOKIT_INDEXER_GRAPHQL_PORT and PROTOKIT_PROCESSOR_GRAPHQL_PORT) for the sovereign environment to expose port 8080 internally for both containers.
• The host machine continues to use ports 8081 and 8082 for external access, as specified in the respective Docker Compose files (indexer, processor).

Additional Notes:

• This update is specific to the sovereign environment and does not affect other environments.