Dbt pipline

[djagoda881]

Added action that tests dbt models and runs them.

Course of action:

• Definition of env var needed for profiles.yml file. NESSO_USER as the schema name in the DB and DB_TOKEN as the DB access token
• Steps Package installation, Configuration of dbt profiles, dbt package installltion are used to set up the test environment
• Step dbt target setup is used to switch to the main branch to create the manifest.json file there by using dbt compile. Then I change the branch to the feature branch and copy the manifest.json file outside the target/ directory so that it won't be overwritten because it will be used to detect changes between branches. Running dbt compile updates the target/manifest.json file with the latest changes on the feature branch.
• The last step runs tests and models based on comparing the change between target/manifest.json and manifest.json files so we can detect differences between models