[FEATURE] Decouple passing sensitive data from context to storing them in parameter store as secure string

[NishantJoshi00]

Description

Currently, we pass data like master_key, database password via Construct context, which forces us to pass it everytime we run the deploy command. Instead we can store them in the parameter store or secrets manager and use them later in the CDK script. This decouples the person maintaining these sensitive values from the person running the installation/updation script