Update chart dependencies (#705)

charts/commento/Chart.lock

charts/commento/Chart.yaml

charts/commento/README.md

charts/commento/charts/postgres-0.2.13.tgz

charts/commento/charts/postgres-0.2.14.tgz

charts/ghost/Chart.lock

charts/ghost/Chart.yaml

charts/ghost/README.md

charts/ghost/charts/mariadb-0.2.15.tgz

charts/gitea/Chart.lock

charts/gitea/Chart.yaml

charts/gitea/README.md

charts/gitea/charts/mariadb-0.2.15.tgz

charts/gitea/charts/postgres-0.2.13.tgz

charts/gitea/charts/postgres-0.2.14.tgz

charts/nextcloud/Chart.lock

charts/nextcloud/Chart.yaml

charts/nextcloud/README.md

charts/nextcloud/charts/mariadb-0.2.15.tgz

charts/nextcloud/charts/postgres-0.2.13.tgz