fix: version names cannot include multiple + (#118)

Follow up of #117

scripts/run-ci-build-wheel.sh

@@ -42,7 +42,7 @@ echo "::endgroup::"
 
 echo "::group::Build wheel for FlashInfer"
 cd "$PROJECT_ROOT/python"
-MAX_JOBS=32 FLASHINFER_BUILD_VERSION="${FLASHINFER_BUILD_VERSION}+cu${CUDA_MAJOR}${CUDA_MINOR}+torch${TORCH_MAJOR}${TORCH_MINOR}" python -m build --no-isolation
+MAX_JOBS=32 FLASHINFER_BUILD_VERSION="${FLASHINFER_BUILD_VERSION}+cu${CUDA_MAJOR}${CUDA_MINOR}torch${FLASHINFER_CI_TORCH_VERSION}" python -m build --no-isolation
 rm -f dist/*.tar.gz
 python -m build --no-isolation --sdist
 echo "::endgroup::"