[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.

epilogue-processor/src/test/java/edu/wpi/first/epilogue/processor/AnnotationProcessorTest.java

@@ -2536,7 +2536,8 @@ class AnnotationProcessorTest {
         class Example {}
         """;
 
-    String packageInfo = """
+    String packageInfo =
+        """
         package example;
         """;