Bump micrometer.version from 1.9.3 to 1.9.4

Bumps `micrometer.version` from 1.9.3 to 1.9.4.

Updates `micrometer-core` from 1.9.3 to 1.9.4
- [Release notes](https://github.com/micrometer-metrics/micrometer/releases)
- [Commits](micrometer-metrics/micrometer@v1.9.3...v1.9.4)

Updates `micrometer-registry-prometheus` from 1.9.3 to 1.9.4
- [Release notes](https://github.com/micrometer-metrics/micrometer/releases)
- [Commits](micrometer-metrics/micrometer@v1.9.3...v1.9.4)

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

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

Author: dependabot[bot]

pom.xml

@@ -56,7 +56,7 @@
     <netty.version>4.1.81.Final</netty.version>
     <proton-j.version>0.34.0</proton-j.version>
     <metrics.version>4.2.12</metrics.version>
-    <micrometer.version>1.9.3</micrometer.version>
+    <micrometer.version>1.9.4</micrometer.version>
     <swiftmq-client.version>12.2.2</swiftmq-client.version>
     <picocli.version>4.6.3</picocli.version>
     <guava.version>31.1-jre</guava.version>