minor #29192 [PhpUnitBridge] Fix typo (ro0NL)

This PR was merged into the 2.8 branch.

Discussion
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[PhpUnitBridge] Fix typo

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | #...   <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | symfony/symfony-docs#... <!-- required for new features -->

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Commits
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78e386e87f [PhpUnitBridge] Fix typo

src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler.php

@@ -30,7 +30,7 @@ class DeprecationErrorHandler
      * - use "/some-regexp/" to stop the test suite whenever a deprecation
      *   message matches the given regular expression;
      * - use a number to define the upper bound of allowed deprecations,
-     *   making the test suite fail whenever more notices are trigerred.
+     *   making the test suite fail whenever more notices are triggered.
      *
      * @param int|string|false $mode The reporting mode, defaults to not allowing any deprecations
      */