Bump net.logstash.logback:logstash-logback-encoder from 8.1 to 9.0

Bumps [net.logstash.logback:logstash-logback-encoder](https://github.com/logfellow/logstash-logback-encoder) from 8.1 to 9.0.
- [Release notes](https://github.com/logfellow/logstash-logback-encoder/releases)
- [Commits](logfellow/logstash-logback-encoder@logstash-logback-encoder-8.1...logstash-logback-encoder-9.0)

---
updated-dependencies:
- dependency-name: net.logstash.logback:logstash-logback-encoder
  dependency-version: '9.0'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pom.xml

@@ -32,7 +32,7 @@
         <java.version>21</java.version>
         <javase.version>3.5.3</javase.version>
         <junit-vintage-engine.version>5.12.2</junit-vintage-engine.version>
-        <logstash-logback-encoder.version>8.1</logstash-logback-encoder.version>
+        <logstash-logback-encoder.version>9.0</logstash-logback-encoder.version>
         <mockito-core.version>4.2.0</mockito-core.version>
         <mongock-bom.version>4.3.8</mongock-bom.version>
         <oauth2-oidc-sdk.version>11.30.1</oauth2-oidc-sdk.version>