Prepare release v2.9.8

CHANGELOG.md

+## [v2.9.8](https://github.com/traefik/traefik/tree/v2.9.8) (2023-02-15)
+[All Commits](https://github.com/traefik/traefik/compare/v2.9.7...v2.9.8)
+
+**Bug fixes:**
+- **[server]** Update golang.org/x/net to v0.7.0 ([#9716](https://github.com/traefik/traefik/pull/9716) by [ldez](https://github.com/ldez))
+
 ## [v2.9.7](https://github.com/traefik/traefik/tree/v2.9.7) (2023-02-14)
 [All Commits](https://github.com/traefik/traefik/compare/v2.9.6...v2.9.7)

script/gcg/traefik-bugfix.toml

@@ -4,11 +4,11 @@ RepositoryName = "traefik"
 OutputType = "file"
 FileName = "traefik_changelog.md"
 
-# example new bugfix v2.9.7
+# example new bugfix v2.9.8
 CurrentRef = "v2.9"
-PreviousRef = "v2.9.6"
+PreviousRef = "v2.9.7"
 BaseBranch = "v2.9"
-FutureCurrentRefName = "v2.9.7"
+FutureCurrentRefName = "v2.9.8"
 
 ThresholdPreviousRef = 10
 ThresholdCurrentRef = 10