chore(deps): bump io.opentelemetry.instrumentation:opentelemetry-log4j-appender-2.17

Bumps [io.opentelemetry.instrumentation:opentelemetry-log4j-appender-2.17](https://github.com/open-telemetry/opentelemetry-java-instrumentation) from 2.19.0-alpha to 2.20.0-alpha.
- [Release notes](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/CHANGELOG.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-java-instrumentation/commits)

---
updated-dependencies:
- dependency-name: io.opentelemetry.instrumentation:opentelemetry-log4j-appender-2.17
  dependency-version: 2.20.0-alpha
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -19,7 +19,7 @@ nimbus = "10.5"
 netty-mockserver = "5.15.0"
 opentelemetry = "2.19.0"
 opentelemetry-instrumentation = "2.19.0"
-opentelemetry-log4j-appender = "2.19.0-alpha"
+opentelemetry-log4j-appender = "2.20.0-alpha"
 postgres = "42.7.7"
 restAssured = "5.5.6"
 rsApi = "4.0.0"