Update CHANGELOG for 4.4.13

Author: fabpot

CHANGELOG-4.4.md

@@ -7,6 +7,15 @@ in 4.4 minor versions.
 To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash
 To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v4.4.0...v4.4.1
 
+* 4.4.13 (2020-09-02)
+
+ * security #cve-2020-15094 Remove headers with internal meaning from HttpClient responses (mpdude)
+ * bug #38024 [Console] Fix undefined index for inconsistent command name definition (chalasr)
+ * bug #38023 [DI] fix inlining of non-shared services (nicolas-grekas)
+ * bug #38020 [PhpUnitBridge] swallow deprecations (xabbuh)
+ * bug #38010 [Cache] Psr16Cache does not handle Proxy cache items (alex-dev)
+ * bug #37937 [Serializer] fixed fix encoding of cache keys with anonymous classes (michaelzangerle)
+
 * 4.4.12 (2020-08-31)
 
  * bug #37966 [HttpClient][MockHttpClient][DX] Throw when the response factory callable does not return a valid response (fancyweb)