Chore: Upgraded from psycopg2 to psycopg3

This will also change the connection strings.
Chore: Removed usage of deprecated datetime.datetime.utcnow()

brewman/pyproject.toml

@@ -10,7 +10,7 @@ uvicorn = {extras = ["standard"], version = "^0.23.2"}
 fastapi = {extras = ["all"], version = "^0.110.1"}
 python-jose = {extras = ["cryptography"], version = "^3.3.0"}
 passlib = {extras = ["bcrypt"], version = "^1.7.4"}
-psycopg2-binary = "^2.9.9"
+psycopg = {extras = ["binary", "pool"], version = "^3.1.18"}
 SQLAlchemy = "^2.0.29"
 python-multipart = "^0.0.9"
 PyJWT = "^2.8.0"