Update .jenkins/build.sh

Author: svekars

.jenkins/build.sh

@@ -23,7 +23,7 @@ sudo apt-get install -y pandoc
 # Nightly - pip install --pre torch torchvision torchaudio -f https://download.pytorch.org/whl/nightly/cu102/torch_nightly.html
 # Install 2.5 to merge all 2.4 PRs - uncomment to install nightly binaries (update the version as needed).
 sudo pip uninstall -y torch torchvision torchaudio torchtext torchdata
-pip3 install torch==2.7.0 torchvision torchaudio --index-url https://download.pytorch.org/whl/test/cu126
+pip3 install torch==2.7.0 torchvision torchaudio --no-cache-dir --index-url https://download.pytorch.org/whl/test/cu118
 # sudo pip uninstall -y fbgemm-gpu torchrec
 # sudo pip3 install fbgemm-gpu==1.1.0 torchrec==1.0.0 --no-cache-dir --index-url https://download.pytorch.org/whl/test/cu124