Update dependency com.zaxxer:HikariCP to v6 (#838)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pom.xml

@@ -89,7 +89,7 @@
     <assertj.version>3.26.3</assertj.version>
     <changelist>999999-SNAPSHOT</changelist>
     <gson.version>2.10.1</gson.version>
-    <hikaricp.version>5.1.0</hikaricp.version>
+    <hikaricp.version>6.0.0</hikaricp.version>
     <jansi.version>2.4.0</jansi.version>
     <jenkins-plugin-findbugs.version>5.0.0</jenkins-plugin-findbugs.version>
     <jenkins-plugin-flaky-test.version>1.2.3</jenkins-plugin-flaky-test.version>