Refactor to securely handle service credentials

[Shalsh23]

Is your feature request related to a problem? Please describe.
Currently, the test.properties file within the repository contains hardcoded service credentials (username and password). This practice poses a security risk as it can expose sensitive information. To enhance the security of the application and adhere to best practices, refactoring of the credential management process is required.

Describe the solution you'd like.
Utilize external configuration files or environment variables to securely manage credentials.