Bump net.logstash.logback:logstash-logback-encoder from 7.2 to 9.0 (#843)

Bumps [net.logstash.logback:logstash-logback-encoder](https://github.com/logfellow/logstash-logback-encoder) from 7.2 to 9.0.
- [Release notes](https://github.com/logfellow/logstash-logback-encoder/releases)
- [Commits](https://github.com/logfellow/logstash-logback-encoder/compare/logstash-logback-encoder-7.2...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
...

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

gradle/libs.versions.toml

@@ -18,7 +18,7 @@ commons-codec = "commons-codec:commons-codec:1.20.0"
 
 bitcoinj = "org.bitcoinj:bitcoinj-core:0.15.8"
 
-logstash-encoder = "net.logstash.logback:logstash-logback-encoder:7.2"
+logstash-encoder = "net.logstash.logback:logstash-logback-encoder:9.0"
 
 janino = "org.codehaus.janino:janino:3.1.9"