Bump log4j-slf4j2-impl.version from 2.19.0 to 2.20.0 (#557)

Bumps `log4j-slf4j2-impl.version` from 2.19.0 to 2.20.0.

Updates `log4j-slf4j2-impl` from 2.19.0 to 2.20.0
- [Release notes](https://github.com/apache/logging-log4j2/releases)
- [Changelog](https://github.com/apache/logging-log4j2/blob/release-2.x/CHANGELOG.adoc)
- [Commits](apache/logging-log4j2@rel/2.19.0...rel/2.20.0)

Updates `log4j-core` from 2.19.0 to 2.20.0
- [Release notes](https://github.com/apache/logging-log4j2/releases)
- [Changelog](https://github.com/apache/logging-log4j2/blob/release-2.x/CHANGELOG.adoc)
- [Commits](apache/logging-log4j2@rel/2.19.0...rel/2.20.0)

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-slf4j2-impl
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

bom/pom.xml

@@ -34,7 +34,7 @@
 
     <properties>
         <slf4j-api.version>2.0.6</slf4j-api.version>
-        <log4j-slf4j2-impl.version>2.19.0</log4j-slf4j2-impl.version>
+        <log4j-slf4j2-impl.version>2.20.0</log4j-slf4j2-impl.version>
         <jopt.version>5.0.4</jopt.version>
         <dagger.version>2.45</dagger.version>
         <jackson.version>2.14.2</jackson.version>