ENH: Relax required trimeshpy dependency version

Relax required `trimeshpy` dependency version so that more recent
versions are allowed: do not pin to version `0.0.2` and allow versions
equal to or greater than `0.0.2`.

The changes in the `trimeshpy` classes used in `tractodata` between
versions `0.0.2` and `0.0.3` (latest release) are safe and do not affect
the behavior: they only drop checks for `VTK` <= 5 and 8, adopt keyword
arguments in some calls, use Python built-in types (e.g. `int` instead
of `np.int`), use `NiBabel`'s `affine` property on NIfTI images, and
drop import from `future`.

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
     "nibabel",
     "numpy",
     "pandas",
-    "trimeshpy == 0.0.2",
+    "trimeshpy >= 0.0.2",
     "tqdm",
 ]
 description = "Tractography data repository to be used for tractography research"