[deps]: Bump net.logstash.logback:logstash-logback-encoder

Bumps [net.logstash.logback:logstash-logback-encoder](https://github.com/logfellow/logstash-logback-encoder) from 7.3 to 7.4.
- [Release notes](https://github.com/logfellow/logstash-logback-encoder/releases)
- [Commits](logfellow/logstash-logback-encoder@logstash-logback-encoder-7.3...logstash-logback-encoder-7.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -21,7 +21,7 @@ ext {
     jwtVersion = "4.4.0"
     openApiVersion = "2.1.0"
     logbookVersion = "2.16.0"
-    logstashEncoderVersion = "7.3"
+    logstashEncoderVersion = "7.4"
     postgresContainerVersion = "1.19.0"
 }