Bump dnsjava:dnsjava from 3.6.0 to 3.6.1 in /test/fixtures/hdfs-fixture

Bumps [dnsjava:dnsjava](https://github.com/dnsjava/dnsjava) from 3.6.0 to 3.6.1.
- [Release notes](https://github.com/dnsjava/dnsjava/releases)
- [Changelog](https://github.com/dnsjava/dnsjava/blob/master/Changelog)
- [Commits](dnsjava/dnsjava@v3.6.0...v3.6.1)

---
updated-dependencies:
- dependency-name: dnsjava:dnsjava
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

test/fixtures/hdfs-fixture/build.gradle

@@ -55,7 +55,7 @@ dependencies {
     exclude group: 'com.nimbusds'
     exclude module: "commons-configuration2"
   }
-  api "dnsjava:dnsjava:3.6.0"
+  api "dnsjava:dnsjava:3.6.1"
   api "org.codehaus.jettison:jettison:${versions.jettison}"
   api "org.apache.commons:commons-compress:${versions.commonscompress}"
   api "commons-codec:commons-codec:${versions.commonscodec}"