minor #32671 [Lock] Add missing changelog entry for Factory deprecation (Simperfit)

This PR was merged into the 4.4 branch.

Discussion
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[Lock] Add missing changelog entry for Factory deprecation

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | no
| New feature?  | no <!-- please update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- please update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets |    <!-- #-prefixed issue number(s), if any -->
| License       | MIT
| Doc PR        | None <!-- required for new features -->

<!--
Replace this notice by a short README for your feature/bugfix. This will help people
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Additionally (see https://symfony.com/roadmap):
 - Bug fixes must be submitted against the lowest maintained branch where they apply
   (lowest branches are regularly merged to upper ones so they get the fixes too).
 - Features and deprecations must be submitted against branch 4.4.
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Add missing changelog entry for the deprecation of the Factory into LockFactory

Commits
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c6daa617b0 [Lock] Add missing changelog entry for Factory deprecation

src/Symfony/Component/Lock/CHANGELOG.md

@@ -6,7 +6,8 @@ CHANGELOG
 
  * added InvalidTtlException  
  * deprecated `StoreInterface` in favor of `BlockingStoreInterface` and `PersistingStoreInterface`
-   
+ * `Factory` is deprecated, use `LockFactory` instead
+
 4.2.0
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