Merge branch '5.4' into 6.2

* 5.4:
  minor #49431 [Mailer][Translation] Remove some `static` occurrences that may cause unstable tests (alexandre-daubois)
  [Workflow] remove new lines from workflow metadata
  Fix phpdocs in HttpClient, HttpFoundation, HttpKernel, Intl components
  [WebProfilerBundle] Render original (not encoded) email headers

ResourceBundle.php

@@ -32,12 +32,13 @@ abstract protected static function getPath(): string;
      *
      * @see BundleEntryReaderInterface::readEntry()
      *
-     * @param string[] $indices  The indices to read from the bundle
-     * @param bool     $fallback Whether to merge the value with the value from
-     *                           the fallback locale (e.g. "en" for "en_GB").
-     *                           Only applicable if the result is multivalued
-     *                           (i.e. array or \ArrayAccess) or cannot be found
-     *                           in the requested locale.
+     * @param string[]    $indices  The indices to read from the bundle
+     * @param string|null $locale   The locale to read
+     * @param bool        $fallback Whether to merge the value with the value from
+     *                              the fallback locale (e.g. "en" for "en_GB").
+     *                              Only applicable if the result is multivalued
+     *                              (i.e. array or \ArrayAccess) or cannot be found
+     *                              in the requested locale.
      *
      * @return mixed returns an array or {@link \ArrayAccess} instance for
      *               complex data and a scalar value for simple data