added script to correct location

Author: sandeepgupta12

.ci/docker/manywheel/Dockerfile_ppc64le

@@ -14,7 +14,7 @@ RUN ln -sf /usr/bin/python3 /usr/bin/python && \
 
 RUN ln -s /pytorch/requirements.txt /pytorch/.ci/docker/manywheel/requirements.txt
 
-COPY requirements.txt .
+COPY ../../requirements.txt .
 # Install Python packages via pip
 RUN pip install wheel setuptools pyyaml typing_extensions expecttest