fix ci broken issue (#3931)

Author: lanluo-nvidia

.github/scripts/install-torch-tensorrt.sh

@@ -18,8 +18,8 @@ pip install --pre -r ${PWD}/tests/py/requirements.txt
 # eg. timm will install the latest torchvision, however we want to use the torchvision from nightly
 # reinstall torch torchvisionto make sure we have the correct version
 pip uninstall -y torch torchvision
-pip install --force-reinstall --pre ${TORCHVISION} --index-url ${INDEX_URL}
-pip install --force-reinstall --pre ${TORCH} --index-url ${INDEX_URL}
+pip install --force-reinstall --pre ${TORCHVISION} --index-url ${INDEX_URL} --extra-index-url https://pypi.org/simple
+pip install --force-reinstall --pre ${TORCH} --index-url ${INDEX_URL} --extra-index-url https://pypi.org/simple
 
 if [[ ${USE_TRT_RTX} == true ]]; then
     source .github/scripts/install-tensorrt-rtx.sh

.github/workflows/build-test-linux-aarch64.yml

@@ -77,6 +77,7 @@ jobs:
       smoke-test-script: ${{ matrix.smoke-test-script }}
       trigger-event: ${{ github.event_name }}
       architecture: "aarch64"
+      pip-install-torch-extra-args: "--extra-index-url https://pypi.org/simple"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref_name }}-${{ inputs.repository }}-${{ github.event_name == 'workflow_dispatch' }}-${{ inputs.job-name }}

.github/workflows/build-test-linux-x86_64.yml

@@ -77,6 +77,7 @@ jobs:
       trigger-event: ${{ github.event_name }}
       architecture: "x86_64"
       use-rtx: false
+      pip-install-torch-extra-args: "--extra-index-url https://pypi.org/simple"
 
   L0-dynamo-converter-tests:
     name: L0 dynamo converter tests

.github/workflows/build-test-linux-x86_64_rtx.yml

@@ -76,6 +76,7 @@ jobs:
       trigger-event: ${{ github.event_name }}
       architecture: "x86_64"
       use-rtx: true
+      pip-install-torch-extra-args: "--extra-index-url https://pypi.org/simple"
 
   L0-dynamo-converter-tests:
     name: L0 dynamo converter tests

packaging/pre_build_script.sh

@@ -53,7 +53,7 @@ else
     INDEX_URL=https://download.pytorch.org/whl/${CHANNEL}/${CU_VERSION}
 
     # Install all the dependencies required for Torch-TensorRT
-    pip install --force-reinstall --pre ${TORCH} --index-url ${INDEX_URL}
+    pip install --force-reinstall --pre ${TORCH} --index-url ${INDEX_URL} --extra-index-url https://pypi.org/simple
 fi
 
 export TORCH_BUILD_NUMBER=$(python -c "import torch, urllib.parse as ul; print(ul.quote_plus(torch.__version__))")