Prepare release v2.4.13

Author: mpl

CHANGELOG.md

@@ -1,3 +1,9 @@
+## [v2.4.13](https://github.com/traefik/traefik/tree/v2.4.13) (2021-07-30)
+[All Commits](https://github.com/traefik/traefik/compare/v2.4.12...v2.4.13)
+
+**Bug fixes:**
+- **[authentication,middleware]** Remove hop-by-hop headers define in connection header beore some middleware ([#8319](https://github.com/traefik/traefik/pull/8319) by [ldez](https://github.com/ldez))
+
 ## [v2.4.12](https://github.com/traefik/traefik/tree/v2.4.12) (2021-07-26)
 [All Commits](https://github.com/traefik/traefik/compare/v2.4.11...v2.4.12)
 

script/gcg/traefik-bugfix.toml

@@ -4,11 +4,11 @@ RepositoryName = "traefik"
 OutputType = "file"
 FileName = "traefik_changelog.md"
 
-# example new bugfix v2.4.12
+# example new bugfix v2.4.13
 CurrentRef = "v2.4"
-PreviousRef = "v2.4.11"
+PreviousRef = "v2.4.12"
 BaseBranch = "v2.4"
-FutureCurrentRefName = "v2.4.12"
+FutureCurrentRefName = "v2.4.13"
 
 ThresholdPreviousRef = 10
 ThresholdCurrentRef = 10