Task A-7: Removed certificates from external Dockerfile; added intern…

…ally

Refer to issue comment for details:
Task A-7: e-mission/e-mission-docs#1082 (comment)

The certificates are relevant to our internal AWS configuration and not needed externally.
They can be present externally too without having any major effect.
But removing them helps keeping the base image clean.
Additionally, anyone working with the code can customize with their own certificates if needed or adopt an approach which doesn't even need certificates in the first place.

Dockerfile

@@ -3,8 +3,6 @@ FROM ubuntu:jammy-20240227
 
 MAINTAINER K. Shankari ([email protected])
 
-ADD https://truststore.pki.rds.amazonaws.com/global/global-bundle.pem /etc/ssl/certs/
-
 WORKDIR /usr/src/app
 
 RUN apt-get -y -qq update