Implement Trino Secrets

[wg102]

Trino should additionally authenticate with a secret at the very least
Remove the hardcoded passwords from the trino and use secrets instead.

Including the necessary things for local testing to work.

[wg102]

Tasks to do:

• Figure out the changed needed to add the secret to the catalog
• For local testing, need to add something in the Makefile
• For dev testing (or prod) need to add a secret in the terraform repo

[wg102]

Terraform secret PR added on Gitlab on 14-04-2022

[wg102]

A similar PR will be needed for prod as well.

[wg102]

The way it works is that locally, we create secrets by running make secrets.
On dev the secrets are already there since we added a PR to github. (Not sure if this got merged yet # 103). Prod will be same as dev, but the secrets have not been created yet. The values.yaml implements a env variable using a reference to the secret. and that env var is used in the code. That is how we will now use secrets in trino and removed the hardcoded password and username