Bump subversion from 2.15.1 to 2.15.5

Bumps [subversion](https://github.com/jenkinsci/subversion-plugin) from 2.15.1 to 2.15.5.
- [Release notes](https://github.com/jenkinsci/subversion-plugin/releases)
- [Changelog](https://github.com/jenkinsci/subversion-plugin/blob/master/docs/old-changelog.md)
- [Commits](jenkinsci/subversion-plugin@subversion-2.15.1...subversion-2.15.5)

---
updated-dependencies:
- dependency-name: org.jenkins-ci.plugins:subversion
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -26,7 +26,7 @@
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>subversion</artifactId>
-      <version>2.15.1</version>
+      <version>2.15.5</version>
       <optional>true</optional>
       <exclusions>
         <exclusion>