fix: upgrade mariadb chart to fix upgrade bug

This change allows `make install-lagoon-remote` to be run more than
once.

Previously we would hit bitnami/charts#15093.

The specific chart version that this PR upgrades to is the latest
version of the chart which still uses MariaDB 10.11.x (the LTS minor
version of v10). Later versions of the chart upgrade to MariaDB 11,
which is outside the scope of this bugfix.

Makefile

@@ -117,7 +117,7 @@ install-mariadb:
 		--wait \
 		--timeout $(TIMEOUT) \
 		$$($(KUBECTL) get ns mariadb > /dev/null 2>&1 && echo --set auth.rootPassword=$$($(KUBECTL) get secret --namespace mariadb mariadb -o json | $(JQ) -r '.data."mariadb-root-password" | @base64d')) \
-		--version=11.5.7 \
+		--version=12.2.9 \
 		mariadb \
 		bitnami/mariadb