[Snyk] Security upgrade ca.uhn.hapi.fhir:hapi-fhir-structures-r4 from 6.4.4 to 6.6.0

[rrowlands]

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: - georegistry-server/pom.xml #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Upgrade | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------|:-------------------------  | **616/1000**
**Why?** Proof of Concept exploit, Has a fix available, CVSS 5.9 | Denial of Service (DoS)
[SNYK-JAVA-COMSQUAREUPOKIO-5820002](https://snyk.io/vuln/SNYK-JAVA-COMSQUAREUPOKIO-5820002) | `ca.uhn.hapi.fhir:hapi-fhir-structures-r4:`
`6.4.4 -> 6.6.0`
| No | Proof of Concept (*) 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/terraframe/project/169ccdae-0c5d-4e07-82c5-925fef70ada9?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/terraframe/project/169ccdae-0c5d-4e07-82c5-925fef70ada9?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":"4df6e60d-9e21-46db-b9da-71c85ddf0e4b","prPublicId":"4df6e60d-9e21-46db-b9da-71c85ddf0e4b","dependencies":[{"name":"ca.uhn.hapi.fhir:hapi-fhir-structures-r4","from":"6.4.4","to":"6.6.0"}],"packageManager":"maven","projectPublicId":"169ccdae-0c5d-4e07-82c5-925fef70ada9","projectUrl":"https://app.snyk.io/org/terraframe/project/169ccdae-0c5d-4e07-82c5-925fef70ada9?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-JAVA-COMSQUAREUPOKIO-5820002"],"upgrade":["SNYK-JAVA-COMSQUAREUPOKIO-5820002"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","priorityScore"],"priorityScoreList":[616],"remediationStrategy":"vuln"}) --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Denial of Service (DoS)](https://learn.snyk.io/lesson/redos/?loc=fix-pr)

[terraframe-builder]

Can one of the admins verify this patch?