Update version badge from 1.52.7 to 1.52.8

Signed-off-by: Quentin Bisson <[email protected]>

Author: QuentinBisson

charts/tempo-distributed/README.md

@@ -1,6 +1,6 @@
 # tempo-distributed
 
-![Version: 1.52.7](https://img.shields.io/badge/Version-1.52.7-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.9.0](https://img.shields.io/badge/AppVersion-2.9.0-informational?style=flat-square)
+![Version: 1.52.8](https://img.shields.io/badge/Version-1.52.8-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.9.0](https://img.shields.io/badge/AppVersion-2.9.0-informational?style=flat-square)
 
 Grafana Tempo in MicroService mode