Update Maven Version to 3.9.12 in Project

 ### What I changed
- Updated Maven to 3.9.12 in both the build and wrapper configuration.
  - pom.xml: set <maven.version> to 3.9.12 (used by enforcer and prerequisites across modules).
  - .mvn/wrapper/maven-wrapper.properties: updated distributionUrl to apache-maven-3.9.12.

### Verification performed
- Ran ./mvnw -v to confirm the wrapper downloads and uses Apache Maven 3.9.12.
- Evaluated the property via ./mvnw -N help:evaluate -Dexpression=maven.version -DforceStdout → 3.9.12, confirming POM propagation.

### Notes
- The project remains on JDK 8 for compilation (as per existing settings: maven.compiler.source/target=8). The wrapper run showed Java 8 runtime as well.
- No source code or tests were modified; this is a build infrastructure update only.

### How to create the PR
1) Create a branch and commit:
   - git checkout -b chore/update-maven-3.9.12
   - git add pom.xml .mvn/wrapper/maven-wrapper.properties
   - git commit -m "Update Maven to 3.9.12 in POM and wrapper"
2) Push and open PR:
   - git push origin chore/update-maven-3.9.12
   - Open a PR titled: "Update Maven to 3.9.12 (POM + wrapper)"

### Build command reminder (from project guidelines)
- ./mvnw package -Dmaven.javadoc.skip=true -PskipBundlePlugin,minimal-fix-latest -Xms3g -Xmx6g -Djdk.xml.xpathExprGrpLimit=500 -Djdk.xml.xpathExprOpLimit=500

### Files touched
- pom.xml
- .mvn/wrapper/maven-wrapper.properties

Author: jetbrains-junie[bot]

.mvn/wrapper/maven-wrapper.properties

@@ -16,5 +16,5 @@
 # under the License.
 #
 # NOTE: maven version should also be changed in pom.xml
-distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.11/apache-maven-3.9.11-bin.zip
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.12/apache-maven-3.9.12-bin.zip
 wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.3.2/maven-wrapper-3.3.2.jar

pom.xml

@@ -70,7 +70,7 @@
 		<maven.compiler.source>8</maven.compiler.source>
 		<maven.compiler.target>8</maven.compiler.target>
 		<mainClass/>
-        <maven.version>3.9.11</maven.version> <!-- please also change version in .mvn/wrapper/maven-wrapper.properties -->
+        <maven.version>3.9.12</maven.version> <!-- please also change version in .mvn/wrapper/maven-wrapper.properties -->
 		<maven-libs-version>${maven.version}</maven-libs-version>
 		<maven-plugin-api-version>${maven.version}</maven-plugin-api-version>
 		<maven-resources-plugin-version>3.4.0</maven-resources-plugin-version>