Bump logstash/logstash from 7.5.1 to 7.15.0 in /docker/logstash#227

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masterrustielin/libra:masterfrom

dependabot/docker/docker/logstash/logstash/logstash-7.15.0rustielin/libra:dependabot/docker/docker/logstash/logstash/logstash-7.15.0Copy head branch name to clipboard