Upgrade spotless dependency and maven workflow since spotless now

requires Java 17.

Author: davewichers

.github/workflows/maven.yaml

@@ -11,11 +11,11 @@ jobs:
     - uses: actions/checkout@v5
       with:
         fetch-depth: 0
-    - name: Set up JDK 11
+    - name: Set up JDK 17
       uses: actions/setup-java@v5
       with:
-        java-version: '11'
-        distribution: 'zulu'
+        java-version: 17
+        distribution: zulu
     - name: Run Spotless check
       run: mvn spotless:check
     - name: Create WAR

pom.xml

@@ -1104,7 +1104,7 @@
             <plugin>
                 <groupId>com.diffplug.spotless</groupId>
                 <artifactId>spotless-maven-plugin</artifactId>
-                <version>2.46.1</version>
+                <version>3.1.0</version>
                 <configuration>
                     <!-- optional: limit format enforcement to just the files changed by this feature branch -->
                     <ratchetFrom>origin/master</ratchetFrom>