fix: better rendering of ConnectionError

[alexsch01]

supersedes #1762

---

without this PR

ConnectionError: [object Object]
    at PrivateConnection.callback2 (C:\Users\FakeUser\Downloads\_delme\node_modules\mssql\lib\msnodesqlv8\connection-pool.js:46:17)
    at Immediate.<anonymous> (C:\Users\FakeUser\Downloads\_delme\node_modules\msnodesqlv8\lib\connection.js:47:14)
    at process.processImmediate (node:internal/timers:485:21) {
  code: undefined
}

after this PR: example

ConnectionError: [Microsoft][SQL Server Native Client 11.0][SQL Server]Cannot open database "GenericDatabaseName" requested by the login. The login failed.
    at PrivateConnection.callback2 (C:\Users\FakeUser\Downloads\_delme\node_modules\mssql\lib\msnodesqlv8\connection-pool.js:46:17)
    at Immediate.<anonymous> (C:\Users\FakeUser\Downloads\_delme\node_modules\msnodesqlv8\lib\connection.js:47:14)
    at process.processImmediate (node:internal/timers:485:21) {
  code: undefined,
  originalError: {
    sqlState: '42000',
    message: '[Microsoft][SQL Server Native Client 11.0][SQL Server]Cannot open database "GenericDatabaseName" requested by the login. The login failed.',
    code: 4060
  }
}

[alexsch01]

@dhensby sorry to ping, but I saw you responded to the original PR I made

[dhensby]

@alexsch01 no problem, sorry for being slow to look at it; once the CI goes green I'll get it merged - thanks for taking the time to do this