Upgrade arrow_path to version 3.1.0

[fabionuno]

I hope this PR finds you well and safe.

Migration to 3.1.0

ArrowPath.make() is now deprecated, we need to use ArrowPath.addTip() instead.
If we are not using the isDoubleSided argument of ArrowPath.make() then we can safely replace it by ArrowPath.addTip() without any other change.

But we are using the isDoubleSided argument of ArrowPath.make() then we need to change the code like this:

Before:

  Path path = Path();
  path.relativeLineTo(100, 100);
  path = ArrowPath.make(path, isDoubleSided: true);

After:

  Path path = Path();
  path.relativeLineTo(100, 100);
  path = ArrowPath.addTip(path);
  path = ArrowPath.addTip(path, isBackward: true);

Thank you for reviewing this contribution when you have the opportunity.

[lempiy]

Hi, ty. LGTM.