Update indexed-gzip requirement from <=1.9.1 to <=1.9.4 (#469)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -20,7 +20,7 @@ dependencies = [
     'importlib_resources; python_version < "3.11"',
     "acres",
     "fmriprep >= 24.1.0, <= 24.1.1",
-    "indexed_gzip <= 1.9.1",
+    "indexed_gzip <= 1.9.4",
     "looseversion",
     "networkx ~= 3.3",  # nipype needs networkx, but 3+ isn"t compatible with nipype 1.8.5
     "nibabel <= 5.3.2",