[CI] : Use llvm's python requirements.txt for common py packages. (#4291)

Fixes llvm/torch-mlir-release#17 by reusing
the common package versions from LLVM's python requirements in
torch-mlir's requirement.txt file.

Successful build after the change on torch-mlir-release side:
https://github.com/sahas3/torch-mlir-release/actions/runs/16911191818

Author: sahas3

.github/actions/setup-build/action.yml

@@ -30,12 +30,6 @@ runs:
       with:
         python-version: '3.11'
 
-    - name: Install MLIR Python depends
-      if: ${{ runner.os != 'Linux' }}
-      run: |
-        python -m pip install -r $GITHUB_WORKSPACE/externals/llvm-project/mlir/python/requirements.txt
-      shell: bash
-
     - name: Install PyTorch nightly depends
       if: ${{ runner.os != 'Linux' }}
       run: |

build-requirements.txt

@@ -1,11 +1,9 @@
-numpy
-pybind11
+-r ./externals/llvm-project/mlir/python/requirements.txt
 wheel
 setuptools
 cmake
 ninja
 packaging
-nanobind>=2.4, <3.0
 
 # Workaround for what should be a torch dep
 # See discussion in #1174

build_tools/ci/install_python_deps.sh

@@ -6,10 +6,6 @@ this_dir="$(cd $(dirname $0) && pwd)"
 repo_root="$(cd $this_dir/../.. && pwd)"
 torch_version="${1:-unknown}"
 
-echo "::group::installing llvm python deps"
-python3 -m pip install --no-cache-dir -r $repo_root/externals/llvm-project/mlir/python/requirements.txt
-echo "::endgroup::"
-
 case $torch_version in
   nightly)
     echo "::group::installing nightly torch"

build_tools/python_deploy/build_linux_packages.sh

@@ -337,7 +337,6 @@ function setup_venv() {
   source /main_checkout/torch-mlir/docker_venv/bin/activate
 
   echo ":::: pip installing dependencies"
-  python3 -m pip install --no-cache-dir -r /main_checkout/torch-mlir/externals/llvm-project/mlir/python/requirements.txt
 
   case $torch_version in
     nightly)