Update schema dependency version

Update schema package to force the version to be 0.7.5 to avoid test failures

Author: zhaoqizqwang

requirements/extras/test_requirements.txt

@@ -40,3 +40,4 @@ onnx==1.14.1
 # tf2onnx==1.15.1
 nbformat>=5.9,<6
 accelerate>=0.24.1,<=0.27.0
+schema==0.7.5