Bump com.zaxxer:HikariCP from 5.1.0 to 6.0.0 in /reposilite-backend

Bumps [com.zaxxer:HikariCP](https://github.com/brettwooldridge/HikariCP) from 5.1.0 to 6.0.0.
- [Changelog](https://github.com/brettwooldridge/HikariCP/blob/dev/CHANGES)
- [Commits](brettwooldridge/HikariCP@HikariCP-5.1.0...HikariCP-6.0.0)

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

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

reposilite-backend/build.gradle.kts

@@ -83,7 +83,7 @@ dependencies {
     api("org.jetbrains.exposed:exposed-jdbc:$exposed")
     api("org.jetbrains.exposed:exposed-java-time:$exposed")
     // Drivers
-    implementation("com.zaxxer:HikariCP:5.1.0")
+    implementation("com.zaxxer:HikariCP:6.0.0")
     implementation("org.xerial:sqlite-jdbc:3.46.1.3")
     implementation("mysql:mysql-connector-java:8.0.33")
     implementation("org.mariadb.jdbc:mariadb-java-client:3.4.1")