style: Fix naming of fully qualified class names

Signed-off-by: Sacha Telgenhof <me@sachatelgenhof.com>

examples/custom_provider.php

@@ -9,7 +9,7 @@
 require 'vendor/autoload.php';
 
 /** Provider for all observed holidays by the NYSE (New York Stock Exchange)  */
-class NYSE extends \Yasumi\Provider\USA
+class NYSE extends Yasumi\Provider\USA
 {
     /**
      * Initialize holidays for the NYSE.

phpinsights.php

@@ -60,19 +60,19 @@
     ],
 
     'remove' => [
-        \PHP_CodeSniffer\Standards\Generic\Sniffs\Commenting\TodoSniff::class,
-        \SlevomatCodingStandard\Sniffs\ControlStructures\DisallowShortTernaryOperatorSniff::class,
-        \SlevomatCodingStandard\Sniffs\ControlStructures\DisallowYodaComparisonSniff::class,
-        \SlevomatCodingStandard\Sniffs\Commenting\DocCommentSpacingSniff::class,
+        PHP_CodeSniffer\Standards\Generic\Sniffs\Commenting\TodoSniff::class,
+        SlevomatCodingStandard\Sniffs\ControlStructures\DisallowShortTernaryOperatorSniff::class,
+        SlevomatCodingStandard\Sniffs\ControlStructures\DisallowYodaComparisonSniff::class,
+        SlevomatCodingStandard\Sniffs\Commenting\DocCommentSpacingSniff::class,
 
         // Remove checks for superfluous naming as we follow PER which supports such convention
-        \SlevomatCodingStandard\Sniffs\Classes\SuperfluousInterfaceNamingSniff::class,
-        \SlevomatCodingStandard\Sniffs\Classes\SuperfluousAbstractClassNamingSniff::class,
-        \SlevomatCodingStandard\Sniffs\Classes\SuperfluousExceptionNamingSniff::class,
+        SlevomatCodingStandard\Sniffs\Classes\SuperfluousInterfaceNamingSniff::class,
+        SlevomatCodingStandard\Sniffs\Classes\SuperfluousAbstractClassNamingSniff::class,
+        SlevomatCodingStandard\Sniffs\Classes\SuperfluousExceptionNamingSniff::class,
     ],
 
     'config' => [
-        \PHP_CodeSniffer\Standards\Generic\Sniffs\Files\LineLengthSniff::class => [
+        PHP_CodeSniffer\Standards\Generic\Sniffs\Files\LineLengthSniff::class => [
             'lineLimit' => 120,
             'absoluteLineLimit' => 140,
             'ignoreComments' => false,