Add excludes for test files

[lenaorobei]

Description

All rules that do not apply on test files need to have one more exclude.

<exclude-pattern>*/tests/*</exclude-pattern>

AC

• Rules contain additional exclude.
• Additional PR in https://github.com/magento/magento2 where all false skip annotations are removed.
  Example: https://github.com/magento/magento2/blob/20db8f67b96e98609ea9d8835ae3830625fa6464/dev/tests/integration/framework/Magento/TestFramework/Workaround/Cleanup/StaticProperties.php#L78

[konarshankar07]

Fixed in #138

[konarshankar07]

Hello @lenaorobei,
I'm still working on creating additional PR in Magento 2 repo where I'll remove false skip annotation
Thanks

[lenaorobei]

@konarshankar07 great, it can be done right after new release and dependency update https://github.com/magento/magento2/blob/2.3-develop/composer.json#L90

[konarshankar07]

@lenaorobei then I'll wait till the next release

[konarshankar07]

Hello @lenaorobei ,
Should I start creating the PR in magento 2 repo?
Thanks