Bump metrics-core from 3.2.4 to 3.2.6 in /modules/cassandra

Bumps [metrics-core](https://github.com/dropwizard/metrics) from 3.2.4 to 3.2.6.
- [Release notes](https://github.com/dropwizard/metrics/releases)
- [Commits](dropwizard/metrics@v3.2.4...v3.2.6)

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

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

Author: dependabot[bot]

modules/cassandra/build.gradle

@@ -2,7 +2,7 @@ description = "TestContainers :: Cassandra"
 
 configurations.all {
     resolutionStrategy {
-        force 'io.dropwizard.metrics:metrics-core:3.2.4'
+        force 'io.dropwizard.metrics:metrics-core:3.2.6'
     }
 }