MDL-58859 mlbackend_php: Upgrade php-ml to latest version

Part of MDL-57791 epic.

lib/mlbackend/php/phpml/src/Phpml/Exception/DatasetException.php

@@ -6,7 +6,6 @@ namespace Phpml\Exception;
 
 class DatasetException extends \Exception
 {
-
     /**
      * @param string $path
      *

lib/mlbackend/php/phpml/src/Phpml/Exception/FileException.php

@@ -6,7 +6,6 @@ namespace Phpml\Exception;
 
 class FileException extends \Exception
 {
-
     /**
      * @param string $filepath
      *

lib/mlbackend/php/phpml/src/Phpml/Exception/InvalidArgumentException.php

@@ -11,7 +11,7 @@ class InvalidArgumentException extends \Exception
      */
     public static function arraySizeNotMatch()
     {
-        return new self('Size of given arrays not match');
+        return new self('Size of given arrays does not match');
     }
 
     /**
@@ -55,7 +55,7 @@ class InvalidArgumentException extends \Exception
      */
     public static function inconsistentMatrixSupplied()
     {
-        return new self('Inconsistent matrix applied');
+        return new self('Inconsistent matrix supplied');
     }
 
     /**
@@ -66,6 +66,14 @@ class InvalidArgumentException extends \Exception
         return new self('Invalid clusters number');
     }
 
+    /**
+     * @return InvalidArgumentException
+     */
+    public static function invalidTarget($target)
+    {
+        return new self('Target with value ' . $target . ' is not part of the accepted classes');
+    }
+
     /**
      * @param string $language
      *
@@ -89,6 +97,19 @@ class InvalidArgumentException extends \Exception
      */
     public static function invalidLayersNumber()
     {
-        return new self('Provide at least 2 layers: 1 input and 1 output');
+        return new self('Provide at least 1 hidden layer');
+    }
+
+    /**
+     * @return InvalidArgumentException
+     */
+    public static function invalidClassesNumber()
+    {
+        return new self('Provide at least 2 different classes');
+    }
+
+    public static function inconsistentClasses()
+    {
+        return new self('The provided classes don\'t match the classes provided in the constructor');
     }
 }

lib/mlbackend/php/phpml/src/Phpml/Exception/SerializeException.php

@@ -6,7 +6,6 @@ namespace Phpml\Exception;
 
 class SerializeException extends \Exception
 {
-
     /**
      * @param string $filepath
      *