Merge branch '7.1' into 7.2

* 7.1:
  [Validator] Fix 58691 (missing plural-options in serbian language translation)
  profiler form data collector extart value property if it is setted
  [Process] Fix escaping /X arguments on Windows
  fix the constant being used
  fix the path separator being used
  fix the directory separator being used
  ignore case of built-in cmd.exe commands
  [Process] Improve test cleanup by unlinking in a `finally` block
  [Notifier] Fix test with hard coded date in `SmsboxTransportTest`
  [Process] Return built-in cmd.exe commands directly in ExecutableFinder
  Re-add missing Profiler shortcuts on Profiler homepage
  [Config] Handle Phar absolute path in `FileLocator`
  [Runtime] Remove unused `SKIPIF` from `dotenv_overload.phpt`

Author: nicolas-grekas

Tests/phpt/dotenv_overload.phpt

@@ -1,7 +1,5 @@
 --TEST--
 Test Dotenv overload
---SKIPIF--
-<?php require dirname(__DIR__, 6).'/vendor/autoload.php'; if (4 > (new \ReflectionMethod(\Symfony\Component\Dotenv\Dotenv::class, 'bootEnv'))->getNumberOfParameters()) echo 'Skip because Dotenv version is too low';
 --INI--
 display_errors=1
 --FILE--