[Snyk] Fix for 1 vulnerabilities

[WillemElbers]

This PR was automatically created by Snyk using the credentials of a real user.

Snyk has created this PR to fix one or more vulnerable packages in the `maven` dependencies of this project.

#### Changes included in this PR - Changes to the following files to upgrade the vulnerable dependencies to a fixed version: - pom.xml #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Upgrade | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------|:-------------------------  | **589/1000**
**Why?** Has a fix available, CVSS 7.5 | Denial of Service (DoS)
[SNYK-JAVA-ORGAPACHEWICKET-1296838](https://snyk.io/vuln/SNYK-JAVA-ORGAPACHEWICKET-1296838) | `de.agilecoders.wicket.webjars:wicket-webjars:`
`2.0.8 -> 2.0.20`
`de.agilecoders.wicket:wicket-bootstrap-core:`
`2.0.8 -> 2.0.15`
`org.apache.wicket:wicket-auth-roles:`
`7.12.0 -> 7.18.0`
`org.apache.wicket:wicket-datetime:`
`7.12.0 -> 7.18.0`
`org.apache.wicket:wicket-extensions:`
`7.12.0 -> 7.18.0`
`org.apache.wicket:wicket-spring:`
`7.12.0 -> 7.18.0`
| No | No Known Exploit (*) Note that the real score may have changed since the PR was raised. Check the changes in this PR to ensure they won't cause issues with your project. ------------ **Note:** *You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.* For more information: 🧐 [View latest project report](https://app.snyk.io/org/clarin-eric/project/09b63777-dfe4-4cfb-b41e-e2c44cc53fa2?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/clarin-eric/project/09b63777-dfe4-4cfb-b41e-e2c44cc53fa2?utm_source=github&utm_medium=referral&page=fix-pr/settings) 📚 [Read more about Snyk's upgrade and patch logic](https://support.snyk.io/hc/en-us/articles/360003891078-Snyk-patches-to-fix-vulnerabilities) [//]: # (snyk:metadata:{"prId":"64393656-8636-4ff3-87b8-e53de7e4c355","prPublicId":"64393656-8636-4ff3-87b8-e53de7e4c355","dependencies":[{"name":"de.agilecoders.wicket.webjars:wicket-webjars","from":"2.0.8","to":"2.0.20"},{"name":"de.agilecoders.wicket:wicket-bootstrap-core","from":"2.0.8","to":"2.0.15"},{"name":"org.apache.wicket:wicket-auth-roles","from":"7.12.0","to":"7.18.0"},{"name":"org.apache.wicket:wicket-datetime","from":"7.12.0","to":"7.18.0"},{"name":"org.apache.wicket:wicket-extensions","from":"7.12.0","to":"7.18.0"},{"name":"org.apache.wicket:wicket-spring","from":"7.12.0","to":"7.18.0"}],"packageManager":"maven","projectPublicId":"09b63777-dfe4-4cfb-b41e-e2c44cc53fa2","projectUrl":"https://app.snyk.io/org/clarin-eric/project/09b63777-dfe4-4cfb-b41e-e2c44cc53fa2?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-JAVA-ORGAPACHEWICKET-1296838"],"upgrade":["SNYK-JAVA-ORGAPACHEWICKET-1296838"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["priorityScore"],"priorityScoreList":[589],"remediationStrategy":"vuln"}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Denial of Service (DoS)](https://learn.snyk.io/lessons/redos/javascript/?loc=fix-pr)

[WillemElbers]

Manually updated dependencies in https://github.com/clarin-eric/VirtualCollectionRegistry/releases/tag/1.6.14-rc1