Bump micrometer-core from 1.8.1 to 1.8.2 (elastic#2398)

Bumps [micrometer-core](https://github.com/micrometer-metrics/micrometer) from 1.8.1 to 1.8.2.
- [Release notes](https://github.com/micrometer-metrics/micrometer/releases)
- [Commits](micrometer-metrics/micrometer@v1.8.1...v1.8.2)

---
updated-dependencies:
- dependency-name: io.micrometer:micrometer-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

Author: dependabot[bot]

apm-agent-plugins/apm-micrometer-plugin/pom.xml

@@ -22,7 +22,7 @@
         <dependency>
             <groupId>io.micrometer</groupId>
             <artifactId>micrometer-core</artifactId>
-            <version>1.8.1</version>
+            <version>1.8.2</version>
             <scope>provided</scope>
         </dependency>
         <dependency>