[build] Upgrade Gradle plugins (#8166)

I upgraded all plugins I could see except org.ysb33r.doxygen. 2.0 made
breaking changes, and I couldn't figure out how to migrate.

Most of the changes are for suppressing new linter purification rites.

cameraserver/multiCameraServer/build.gradle

@@ -31,7 +31,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.google.code.gson:gson:2.10.1'
+    implementation 'com.google.code.gson:gson:2.13.1'
 
     implementation project(':wpiutil')
     implementation project(':wpinet')

cameraserver/src/main/java/edu/wpi/first/cameraserver/CameraServer.java

@@ -46,7 +46,7 @@ public final class CameraServer {
   private static final String kPublishName = "/CameraPublisher";
 
   private static final class PropertyPublisher implements AutoCloseable {
-    @SuppressWarnings({"PMD.MissingBreakInSwitch", "PMD.ImplicitSwitchFallThrough", "fallthrough"})
+    @SuppressWarnings("fallthrough")
     PropertyPublisher(NetworkTable table, VideoEvent event) {
       String name;
       String infoName;
@@ -66,7 +66,7 @@ public final class CameraServer {
             break;
           case kEnum:
             m_choicesTopic = table.getStringArrayTopic(infoName + "/choices");
-            // fall through
+          // fallthrough
           case kInteger:
             m_integerValueEntry = table.getIntegerTopic(name).getEntry(0);
             m_minPublisher = table.getIntegerTopic(infoName + "/min").publish();

cameraserver/src/main/java/edu/wpi/first/vision/VisionPipeline.java

@@ -13,6 +13,7 @@ import org.opencv.core.Mat;
  * @see VisionRunner
  * @see VisionThread
  */
+@FunctionalInterface
 public interface VisionPipeline {
   /**
    * Processes the image input and sets the result objects. Implementations should make these