Bump net.bytebuddy:byte-buddy in /data-prepper-plugins/opensearch (#6377)

Bumps [net.bytebuddy:byte-buddy](https://github.com/raphw/byte-buddy) from 1.17.8 to 1.18.3.
- [Release notes](https://github.com/raphw/byte-buddy/releases)
- [Changelog](https://github.com/raphw/byte-buddy/blob/master/release-notes.md)
- [Commits](raphw/byte-buddy@byte-buddy-1.17.8...byte-buddy-1.18.3)

---
updated-dependencies:
- dependency-name: net.bytebuddy:byte-buddy
  dependency-version: 1.18.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

data-prepper-plugins/opensearch/build.gradle

@@ -43,8 +43,8 @@ dependencies {
     }
     testImplementation testLibs.junit.vintage
     testImplementation libs.commons.io
-    testImplementation 'net.bytebuddy:byte-buddy:1.17.8'
-    testImplementation 'net.bytebuddy:byte-buddy-agent:1.17.8'
+    testImplementation 'net.bytebuddy:byte-buddy:1.18.3'
+    testImplementation 'net.bytebuddy:byte-buddy-agent:1.18.3'
     testImplementation testLibs.slf4j.simple
     testImplementation project(path: ':data-prepper-test:test-common')
     testImplementation 'org.wiremock:wiremock:3.13.2'