deps: bump onnxscript upper bound.

Author: GdoongMathew

requirements/pytorch/test.txt

@@ -11,7 +11,7 @@ scikit-learn >0.22.1, <1.7.0
 numpy >=1.17.2, <1.27.0
 onnx >=1.12.0, <1.19.0
 onnxruntime >=1.12.0, <1.21.0
-onnxscript >= 0.2.2, <0.2.6
+onnxscript >= 0.2.2, <0.3.0
 psutil <7.0.1 # for `DeviceStatsMonitor`
 pandas >1.0, <2.3.0  # needed in benchmarks
 fastapi  # for `ServableModuleValidator`  # not setting version as re-defined in App