Update chart dependencies (#1113)

charts/gitea/Chart.lock

charts/gitea/Chart.yaml

charts/gitea/README.md

charts/gitea/RELEASENOTES.md

charts/gitea/charts/redis-0.5.1.tgz

charts/gitea/charts/redis-0.5.5.tgz

charts/graylog/Chart.lock

charts/graylog/Chart.yaml

charts/graylog/README.md

charts/graylog/RELEASENOTES.md

charts/graylog/charts/mongodb-0.3.14.tgz

charts/graylog/charts/mongodb-0.3.15.tgz

charts/nextcloud/Chart.lock

charts/nextcloud/Chart.yaml

charts/nextcloud/README.md

charts/nextcloud/RELEASENOTES.md

charts/nextcloud/charts/redis-0.5.1.tgz

charts/nextcloud/charts/redis-0.5.5.tgz

charts/remark42/Chart.lock

charts/remark42/Chart.yaml