Merge branch '5.4' into 6.0

* 5.4:
  [DependencyInjection] Properly declare #[When] as allowed on functions
  [VarDumper] Fix dumping floats on PHP8
  Fix dumping enums on PHP 8.2
  [Cache] Prevent fatal errors on php 8 when running concurrently with TagAwareAdapter v6.1

Author: nicolas-grekas

Dumper/AbstractDumper.php

@@ -31,7 +31,7 @@ abstract class AbstractDumper implements DataDumperInterface, DumperInterface
     protected $line = '';
     protected $lineDumper;
     protected $outputStream;
-    protected $decimalPoint; // This is locale dependent
+    protected $decimalPoint = '.';
     protected $indentPad = '  ';
     protected $flags;
 
@@ -46,8 +46,6 @@ public function __construct($output = null, string $charset = null, int $flags =
     {
         $this->flags = $flags;
         $this->setCharset($charset ?: ini_get('php.output_encoding') ?: ini_get('default_charset') ?: 'UTF-8');
-        $this->decimalPoint = localeconv();
-        $this->decimalPoint = $this->decimalPoint['decimal_point'];
         $this->setOutput($output ?: static::$defaultOutput);
         if (!$output && \is_string(static::$defaultOutput)) {
             static::$defaultOutput = $this->outputStream;
@@ -120,9 +118,6 @@ public function setIndentPad(string $pad): string
      */
     public function dump(Data $data, $output = null): ?string
     {
-        $this->decimalPoint = localeconv();
-        $this->decimalPoint = $this->decimalPoint['decimal_point'];
-
         if ($locale = $this->flags & (self::DUMP_COMMA_SEPARATOR | self::DUMP_TRAILING_COMMA) ? setlocale(\LC_NUMERIC, 0) : null) {
             setlocale(\LC_NUMERIC, 'C');
         }