Bump azure-core-http-okhttp from 1.11.1 to 1.11.4 in /fhir-parent

Bumps [azure-core-http-okhttp](https://github.com/Azure/azure-sdk-for-java) from 1.11.1 to 1.11.4.
- [Release notes](https://github.com/Azure/azure-sdk-for-java/releases)
- [Commits](Azure/azure-sdk-for-java@azure-core-http-netty_1.11.1...azure-core-http-netty_1.11.4)

---
updated-dependencies:
- dependency-name: com.azure:azure-core-http-okhttp
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

fhir-parent/pom.xml

@@ -681,7 +681,7 @@
             <dependency>
                 <groupId>com.azure</groupId>
                 <artifactId>azure-core-http-okhttp</artifactId>
-                <version>1.11.1</version>
+                <version>1.11.4</version>
             </dependency>
             <dependency>
                 <groupId>com.azure</groupId>