add individual pg connection properties

backend/src/db/instance.ts

@@ -6,6 +6,13 @@ export const initDbConnection = ({ dbConnectionUri, dbRootCert }: { dbConnection
     client: "pg",
     connection: {
       connectionString: dbConnectionUri,
+      host: process.env.DB_HOST,
+      // @ts-expect-error I have no clue why only for the port there is a type error
+      // eslint-disable-next-line
+      port: process.env.DB_PORT,
+      user: process.env.DB_USER,
+      database: process.env.DB_NAME,
+      password: process.env.DB_PASSWORD,
       ssl: dbRootCert
         ? {
             rejectUnauthorized: true,