Fix Logger compatibility with monolog 2.X

[michaljurecko]

Changes:

• fix compatibility with monolog: 2.X
• monolog was updated in previous release from 1.X -> 2.X: https://github.com/keboola/php-component/releases/tag/8.0.0
• in monolog: 2.X is BC break:
  • https://github.com/Seldaek/monolog/blob/master/UPGRADE.md#200
  • There is no more default handler configured on empty Logger instances, if you were relying on that you will not get any output anymore, make sure to configure the handler you need.
  • Therefore is needed to set default logger in constructor of our Logger class

[michaljurecko]

@tomasfejfar mohol by si prosim na to pozriet? OJ ma zendesk a videl som, ze si pracoval na veciach, ktore sa tu riesia.

Prestalo mi fungovat logovanie v komponente, ako som aktualizoval php-component na 8.0 :

• Problem vznikol v:
• https://github.com/keboola/php-component/releases/tag/8.0.0
• PR: https://github.com/keboola/php-component/pull/65
• aktualizuje sa tam monolog na verziu 2.0
• je tam BC break: https://github.com/Seldaek/monolog/blob/master/UPGRADE.md#200
• There is no more default handler configured on empty Logger instances, if you were relying on that you will not get any output anymore, make sure to configure the handler you need.
• Stara verzia 1.X: https://github.com/Seldaek/monolog/blob/cc6d6c3a0d365d6407111942d7e2016889598183/src/Monolog/Logger.php#L294-L296
• Nová verzia 2.X: https://github.com/Seldaek/monolog/blob/bec314a9c14ce8a40650cf13923f5941ef1bfe0a/src/Monolog/Logger.php#L286
• Videl som, ze si tam implementoval nejake veci v Logger ked si riesil sync actions: https://github.com/keboola/php-component/commit/a4cdd46c1d7958271e1a3c07f3ee24e5659402fc https://github.com/keboola/php-component/blob/d987a6b4502363b0d0dcc302d1d0b58e850cfaef/src/BaseComponent.php#L110-L118
• Lenze tam sa logger nastavuje prilis neskoro, ... ak je napr. chyba v configu, tak sa nezaloguje
• Preto som pridal default logger do konstruktoru, ... to zodpoveda spravaniu, ktore tam bolo doteraz