Upgrade Maven core dependency to 4.0.0-rc-4. (#265)

Author: desruisseaux

.github/workflows/maven-verify.yml

@@ -27,4 +27,4 @@ jobs:
     uses: apache/maven-gh-actions-shared/.github/workflows/maven-verify.yml@v4
     with:
       maven4-build: true
-      maven4-version: '4.0.0-rc-3' # the same as used in project
+      maven4-version: '4.0.0-rc-4' # the same as used in project

pom.xml

@@ -61,12 +61,12 @@ under the License.
   </distributionManagement>
 
   <properties>
-    <mavenVersion>4.0.0-rc-3</mavenVersion>
+    <mavenVersion>4.0.0-rc-4</mavenVersion>
     <javaVersion>17</javaVersion>
     <guavaVersion>33.4.6-jre</guavaVersion>
     <guiceVersion>6.0.0</guiceVersion>
     <slf4jVersion>2.0.17</slf4jVersion>
-    <version.maven-invoker-plugin>3.7.0</version.maven-invoker-plugin>
+    <version.maven-invoker-plugin>3.9.1</version.maven-invoker-plugin>
     <version.maven-plugin-testing>4.0.0-beta-4</version.maven-plugin-testing>
     <version.maven-plugin-tools>4.0.0-beta-1</version.maven-plugin-tools>
     <version.maven-site-plugin>3.21.0</version.maven-site-plugin>
@@ -98,6 +98,12 @@ under the License.
       <version>${mavenVersion}</version>
       <scope>provided</scope>
     </dependency>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-xml</artifactId>
+      <version>${mavenVersion}</version>
+      <scope>provided</scope>
+    </dependency>
 
     <!-- Test -->
     <dependency>