Lock mlir to python <3.14 (#906)

Signed-off-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>
Co-authored-by: Pradyot Ranjan <99216956+pradyotRanjan@users.noreply.github.com>

Author: prady0t

pixi.toml

@@ -64,7 +64,7 @@ SPARSE_BACKEND = "Finch"
 PYTHONFAULTHANDLER = "${HOME}/faulthandler.log"
 
 [feature.mlir.dependencies]
-python = ">=3.10"
+python = ">=3.10,<3.14"
 
 [feature.mlir.pypi-dependencies]
 scipy = ">=0.19"