Bump com.zaxxer:HikariCP from 4.0.3 to 6.2.1 in /modules/spock

Bumps [com.zaxxer:HikariCP](https://github.com/brettwooldridge/HikariCP) from 4.0.3 to 6.2.1.
- [Changelog](https://github.com/brettwooldridge/HikariCP/blob/dev/CHANGES)
- [Commits](brettwooldridge/HikariCP@HikariCP-4.0.3...HikariCP-6.2.1)

---
updated-dependencies:
- dependency-name: com.zaxxer:HikariCP
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

modules/spock/build.gradle

@@ -12,7 +12,7 @@ dependencies {
     testImplementation project(':mysql')
     testImplementation project(':postgresql')
 
-    testImplementation 'com.zaxxer:HikariCP:4.0.3'
+    testImplementation 'com.zaxxer:HikariCP:6.2.1'
     testImplementation 'org.apache.httpcomponents:httpclient:4.5.14'
 
     testRuntimeOnly 'org.postgresql:postgresql:42.7.3'