Upgrade maven deps to latest versions and fix new linter errors (#3772)

This also makes the Gradle build work with JDK 17.

The extra JVM args in gradle.properties works around a bug with spotless
and JDK 17: https://github.com/diffplug/spotless/issues/834

PMD.CloseResource was ignored because it's almost always a false
positive, and there are many of them.

wpiutil/src/main/java/edu/wpi/first/util/RuntimeLoader.java

@@ -140,12 +140,12 @@ public final class RuntimeLoader<T> {
     } catch (UnsatisfiedLinkError ule) {
       // Then load the hash from the input file
       String resname = RuntimeDetector.getLibraryResource(m_libraryName);
-      String hash = null;
+      String hash;
       try (InputStream is = m_loadClass.getResourceAsStream(resname)) {
         if (is == null) {
           throw new IOException(getLoadErrorMessage(ule));
         }
-        MessageDigest md = null;
+        MessageDigest md;
         try {
           md = MessageDigest.getInstance("MD5");
         } catch (NoSuchAlgorithmException nsae) {