chore(deps): update grafana docker tag to v10

This MR contains the following updates:

Package	Update	Change
grafana	major	9.5.21 -> 10.4.16

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roles/fcub/defaults/main.yml

@@ -7,7 +7,7 @@ fcub_be_image: docker-registry.fluidware.it/fcub/fcub-be
 fcub_be_version: 0.10.0
 # renovate:
 fcub_fe_image: docker-registry.fluidware.it/fcub/fcub-fe
-fcub_fe_version: 0.15.0
+fcub_fe_version: 0.15.1
 
 fcub_mysql_user: fcubuser
 fcub_mysql_password: changeme!