Bump subversion from 1.37 to 2.15.4#8

dependabot[bot] wants to merge 1 commit intomasterjenkinsci/trac-plugin:masterfrom

dependabot/maven/org.jenkins-ci.plugins-subversion-2.15.4jenkinsci/trac-plugin:dependabot/maven/org.jenkins-ci.plugins-subversion-2.15.4Copy head branch name to clipboard