docs: correct dates in 2.9.x release notes (backport release-3.1.x) (#…

…15306)

Co-authored-by: Vojtech Splichal <[email protected]>

docs/sources/release-notes/v2-9.md

@@ -34,14 +34,14 @@ Grafana Labs is excited to announce the release of Loki 2.9.0 Here's a summary o
 
 ## Bug fixes
 
-### 2.9.11 (2026-12-05)
+### 2.9.11 (2024-12-04)
 
 - **docker:** Update Docker to 23.0.15 ([#](https://github.com/grafana/loki/issues/)).
 - **lamba-promtail:** Lamba-promtail updates, some of which address CVEs([#14105](https://github.com/grafana/loki/issues/14105)).
 - **promtail:** Switch Promtail base image from Debian to Ubuntu to fix critical security issues ([#15195](https://github.com/grafana/loki/issues/15195)).
 - **storage:** Fix bug in cache of the index object client([#10585](https://github.com/grafana/loki/issues/10585)).
 
-### 2.9.10 (2026-08-09)
+### 2.9.10 (2024-08-09)
 
 - Update dependencies versions to remove CVE ([#13835](https://github.com/grafana/loki/pull/13835)) ([567bef2](https://github.com/grafana/loki/commit/567bef286376663407c54f5da07fa00963ba5485)).
 
@@ -102,4 +102,4 @@ For a full list of all changes and fixes, refer to the [CHANGELOG](https://githu
 - Updated Docker base images to mitigate security vulnerability CVE-2022-48174
 - Fixed bugs in indexshipper (`tsdb`, `boltdb-shipper`) that could result in not showing all ingested logs in query results.
 
-For a full list of all changes and fixes, refer to the [CHANGELOG](https://github.com/grafana/loki/blob/release-2.9.x/CHANGELOG.md).
+For a full list of all changes and fixes, refer to the [CHANGELOG](https://github.com/grafana/loki/blob/release-2.9.x/CHANGELOG.md).