Bump maven-javadoc-plugin from 3.4.0 to 3.4.1 in /fhir-parent (#3921)

* Bump maven-javadoc-plugin from 3.4.0 to 3.4.1 in /fhir-parent

Bumps [maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) from 3.4.0 to 3.4.1.
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](apache/maven-javadoc-plugin@maven-javadoc-plugin-3.4.0...maven-javadoc-plugin-3.4.1)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-javadoc-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

* bump it in fhir-examples too

Signed-off-by: Lee Surprenant <lmsurpre@merative.com>

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Lee Surprenant <lmsurpre@merative.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Lee Surprenant <lmsurpre@merative.com>

Author: dependabot[bot]

fhir-examples/pom.xml

@@ -127,7 +127,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-javadoc-plugin</artifactId>
-                    <version>3.4.0</version>
+                    <version>3.4.1</version>
                 </plugin>
                 <plugin>
                     <groupId>org.sonatype.plugins</groupId>

fhir-parent/pom.xml

@@ -936,9 +936,9 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-javadoc-plugin</artifactId>
-                    <!-- 3.4.0 is the highest version we support as 3.1.0
+                    <!-- 3.4.1 is the highest version we support as 3.1.0
                         changes the ability to aggregate multi-module projects. It's not possible -->
-                    <version>3.4.0</version>
+                    <version>3.4.1</version>
                     <configuration>
                         <!-- speed up the build -->
                         <isOffline>true</isOffline>