minor symfony#58844 [Translation] fix class name (xabbuh)

This PR was merged into the 7.2 branch.

Discussion
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[Translation] fix class name

| Q             | A
| ------------- | ---
| Branch?       | 7.2
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        |
| License       | MIT

Commits
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208d27e fix class name

Author: xabbuh

UPGRADE-7.2.md

@@ -100,7 +100,7 @@ String
 Translation
 -----------
 
- * Deprecate `ProviderFactoryTestCase`, extend `AbstractTransportFactoryTestCase` instead
+ * Deprecate `ProviderFactoryTestCase`, extend `AbstractProviderFactoryTestCase` instead
 
    The `testIncompleteDsnException()` test is no longer provided by default. If you make use of it by implementing the `incompleteDsnProvider()` data providers,
    you now need to use the `IncompleteDsnTestTrait`.

src/Symfony/Component/Translation/CHANGELOG.md

@@ -4,7 +4,7 @@ CHANGELOG
 7.2
 ---
 
- * Deprecate `ProviderFactoryTestCase`, extend `AbstractTransportFactoryTestCase` instead
+ * Deprecate `ProviderFactoryTestCase`, extend `AbstractProviderFactoryTestCase` instead
 
    The `testIncompleteDsnException()` test is no longer provided by default. If you make use of it by implementing the `incompleteDsnProvider()` data providers,
    you now need to use the `IncompleteDsnTestTrait`.