build(deps): bump org.agrona:agrona from 2.5.0 to 2.6.0

Bumps [org.agrona:agrona](https://github.com/aeron-io/agrona) from 2.5.0 to 2.6.0.
- [Release notes](https://github.com/aeron-io/agrona/releases)
- [Changelog](https://github.com/aeron-io/agrona/blob/master/CHANGELOG.adoc)
- [Commits](aeron-io/agrona@2.5.0...2.6.0)

---
updated-dependencies:
- dependency-name: org.agrona:agrona
  dependency-version: 2.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

zthread-benchmark/pom.xml

@@ -49,7 +49,7 @@
         <dependency>
             <groupId>org.agrona</groupId>
             <artifactId>agrona</artifactId>
-            <version>2.5.0</version>
+            <version>2.6.0</version>
         </dependency>
         <dependency>
             <groupId>io.undertow</groupId>