Bump micronaut-bom from 3.8.5 to 3.8.6

Bumps [micronaut-bom](https://github.com/micronaut-projects/micronaut-core) from 3.8.5 to 3.8.6.
- [Release notes](https://github.com/micronaut-projects/micronaut-core/releases)
- [Changelog](https://github.com/micronaut-projects/micronaut-core/blob/4.0.x/RELEASE.adoc)
- [Commits](micronaut-projects/micronaut-core@v3.8.5...v3.8.6)

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

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

Author: dependabot[bot]

acceptance-tests/acceptance-tests-micronaut/pom.xml

@@ -31,7 +31,7 @@
   <description>Acceptance test components.</description>
 
   <properties>
-    <micronaut.version>3.8.5</micronaut.version>
+    <micronaut.version>3.8.6</micronaut.version>
   </properties>
 
   <dependencyManagement>