Raise kEpsilon from 1e-8 to 1e-6

This prevents an extremely rare but still possible warning from Rotation2d about x and y being 0, as Rotation2d uses 1e-6 as its epsilon for 0 checking.

pathplannerlib/src/main/java/com/pathplanner/lib/util/swerve/SwerveSetpointGenerator.java

@@ -25,7 +25,7 @@
  * forces acting on a module's wheel from exceeding the force of friction.
  */
 public class SwerveSetpointGenerator {
-  private static final double kEpsilon = 1E-8;
+  private static final double kEpsilon = 1E-6;
 
   private final RobotConfig config;
   private final double maxSteerVelocityRadsPerSec;