⬇️(project) downgrade Grafana to previous release

Grafana 10 will be upgraded later in Potsie as for now, we want to deploy first
the modifications in the dashboards.

CHANGELOG.md

@@ -12,7 +12,6 @@ Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 
 ## Changed
 
-- Upgrade `Grafana` to 10.1.0
 - Define `duration` and `title` panel for `Course video details` dashboard
 - Define a set of `downloads` panels for `Course video overview` dashboard
 - Modify the dashboards layout to a line display, grouping panels by theme

docker-compose.yml

@@ -9,7 +9,7 @@ services:
       - ./fixtures/postgresql/marsha.sql:/docker-entrypoint-initdb.d/init.sql
 
   grafana:
-    image: grafana/grafana:10.1.0
+    image: grafana/grafana:9.5.3
     ports:
       - 3000:3000
     user: "${DOCKER_USER:-1000}"