fix(build): use Maps from guava, not Google API Client
import com.badlogic.gdx.physics.bullet.dynamics.btDiscreteDynamicsWorld;
import com.badlogic.gdx.physics.bullet.dynamics.btRigidBody;
import com.badlogic.gdx.physics.bullet.dynamics.btSequentialImpulseConstraintSolver;
-import com.google.api.client.util.Maps;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import org.joml.Matrix4f;
import org.joml.Quaternionf;
