[CI/CD] Update yaml file `./production/helm/loki/Chart.yaml` (+1 other) (#9385)

**Here is a summary of the updates contained in this PR:**
***
Update attribute `$.appVersion` in yaml file
`./production/helm/loki/Chart.yaml` to the following value: `2.8.2`
***
Bump version of Helm Chart
Add changelog entry to `./production/helm/loki/CHANGELOG.md`
Re-generate docs

Co-authored-by: Salva Corts <salva.corts@grafana.com>

production/helm/loki/CHANGELOG.md

@@ -13,6 +13,11 @@ Entries should include a reference to the pull request that introduced the chang
 
 [//]: # (<AUTOMATED_UPDATES_LOCATOR> : do not remove this line. This locator is used by the CI pipeline to automatically create a changelog entry for each new Loki release. Add other chart versions and respective changelog entries bellow this line.)
 
+## 5.4.0
+
+- [CHANGE] Changed version of Loki to 2.8.2
+
+
 - [CHANGE] Change default GEL and Loki versions to 1.7.1 and 2.8.1 respectively
 - [BUGFIX] Fix dns port in network-policy
 

production/helm/loki/Chart.yaml

@@ -2,8 +2,8 @@ apiVersion: v2
 name: loki
 description: Helm chart for Grafana Loki in simple, scalable mode
 type: application
-appVersion: 2.8.1
-version: 5.3.1
+appVersion: 2.8.2
+version: 5.4.0
 home: https://grafana.github.io/helm-charts
 sources:
   - https://github.com/grafana/loki

production/helm/loki/README.md

@@ -1,6 +1,6 @@
 # loki
 
-![Version: 5.3.1](https://img.shields.io/badge/Version-5.3.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.8.1](https://img.shields.io/badge/AppVersion-2.8.1-informational?style=flat-square)
+![Version: 5.4.0](https://img.shields.io/badge/Version-5.4.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 2.8.2](https://img.shields.io/badge/AppVersion-2.8.2-informational?style=flat-square)
 
 Helm chart for Grafana Loki in simple, scalable mode