feat: Remove PostgreSQL authentication environment variables from StatefulSet

HelmChart/Public/oneuptime/templates/postgresql-statefulset.yaml

@@ -70,10 +70,6 @@ spec:
               key: postgres-password
         - name: PGDATA
           value: "/var/lib/postgresql/data/pgdata"
-        - name: POSTGRES_HOST_AUTH_METHOD
-          value: "md5"
-        - name: POSTGRES_INITDB_ARGS
-          value: "--auth-host=md5"
         livenessProbe:
           exec:
             command: