Adds a new DAG with the following flow:

• Get current db production color
• Locate the connection credentials from the properties file sitting on pipelines3 (should this be stored as an Airflow connection instead?)
• Connect to database and find all studies from the cancer_study table with an import_date of >30 days
• Connect to Google Sheets and mark of all studies with a matching STABLE_ID with an r in the triage-portal column

cc @sheridancbio