[Snyk] Security upgrade org.postgresql:postgresql from 42.3.3 to 42.3.8

[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 :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------|:-------------------------  | **521/1000**
**Why?** Recently disclosed, Has a fix available, CVSS 4.7 | Information Exposure
[SNYK-JAVA-ORGPOSTGRESQL-3146847](https://snyk.io/vuln/SNYK-JAVA-ORGPOSTGRESQL-3146847) | `org.postgresql:postgresql:`
`42.3.3 -> 42.3.8`
| 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":"15ad5bd9-ca93-43f8-9921-41b352489325","prPublicId":"15ad5bd9-ca93-43f8-9921-41b352489325","dependencies":[{"name":"org.postgresql:postgresql","from":"42.3.3","to":"42.3.8"}],"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-ORGPOSTGRESQL-3146847"],"upgrade":["SNYK-JAVA-ORGPOSTGRESQL-3146847"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","priorityScore"],"priorityScoreList":[521]}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Learn about vulnerability in an interactive lesson of Snyk Learn.](https://learn.snyk.io/?loc=fix-pr)

[WillemElbers]

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