minor symfony#19255 skip test with current phpunit bridge (remicollet)

This PR was merged into the 2.8 branch.

Discussion
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skip test with current phpunit bridge

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | N/A
| License       | MIT
| Doc PR        | N/A

AS for DnsMock in some other tests, (e.g. see efc1de7)

Commits
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7696c95 skip test with current phpunit bridge

Author: fabpot

src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php

@@ -60,6 +60,9 @@ public function testDefinitions()
         }
     }
 
+    /**
+     * @requires function Symfony\Bridge\PhpUnit\ErrorAssert::assertDeprecationsAreTriggered
+     */
     public function testCreateDeprecatedService()
     {
         ErrorAssert::assertDeprecationsAreTriggered('The "deprecated_foo" service is deprecated. You should stop using it, as it will soon be removed.', function () {

src/Symfony/Component/Yaml/Tests/ParserTest.php

@@ -928,6 +928,7 @@ public function testFloatKeys()
     /**
      * @group legacy
      * throw ParseException in Symfony 3.0
+     * @requires function Symfony\Bridge\PhpUnit\ErrorAssert::assertDeprecationsAreTriggered
      */
     public function testColonInMappingValueException()
     {