Bump netty-bom from 4.1.87.Final to 4.1.89.Final (zalando#1424)

Bumps [netty-bom](https://github.com/netty/netty) from 4.1.87.Final to 4.1.89.Final.
- [Release notes](https://github.com/netty/netty/releases)
- [Commits](netty/netty@netty-4.1.87.Final...netty-4.1.89.Final)

---
updated-dependencies:
- dependency-name: io.netty:netty-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

logbook-parent/pom.xml

@@ -35,7 +35,7 @@
         <json-path.version>2.7.0</json-path.version>
         <kotlin.version>1.8.10</kotlin.version>
         <ktor.version>1.6.8</ktor.version>
-        <netty.version>4.1.87.Final</netty.version>
+        <netty.version>4.1.89.Final</netty.version>
         <reactor-netty.version>1.1.3</reactor-netty.version>
         <slf4j.version>1.7.36</slf4j.version>