Deprecation/warnings with squizlabs/php_codesniffer 3.13

[LucaGallinari]

Hi! I just updated squizlabs/php_codesniffer to version 3.13 and i got these two messages:

DEPRECATED: The sniff EcgM2\Sniffs\MissingParentCallSniff does not comply with the PHP_CodeSniffer naming conventions. This will no longer be supported in PHPCS 4.0.
Contact the sniff author to fix the sniff.

WARNING: The Magento EcgM2 and PSR2 Custom Coding Standard standard uses 1 deprecated sniff

• Generic.Functions.CallTimePassByReference
  This sniff has been deprecated since v3.12.1 and will be removed in v4.0.0.

Deprecated sniffs are still run, but will stop working at some point in the future.