Edge case segfault with 0 OpenCL/CUDA devices

This release fixes an edge case that leads to a segmentation fault, when QTensorNetwork is used in the presence of 0 available OpenCL/CUDA devices.

Full Changelog:
unitaryfund/qrack@vm6502q.v9.9.42...vm6502qv9.9.46
v1.30.25...v1.30.26

sha1sum results:
1a21b667a26479cbf1af957a7f79d6e0138c8d30 pyqrack-1.30.26-py3-none-macosx_12_0_x86_64.whl
2ccc91deb45ab321da8b0137787b5fee4e2a1ce6 pyqrack-1.30.26-py3-none-macosx_13_0_x86_64.whl
3cde8a9f9f9484ec1c898149607859ec0033aa6f pyqrack-1.30.26-py3-none-macosx_14_0_arm64.whl
0025c24886a4dd2e78ecb0d2fdafe20f3121ee52 pyqrack-1.30.26-py3-none-manylinux_2_31_x86_64.whl
2b22970e52ef7cc9ce80ed402dc6d51e260a339a pyqrack-1.30.26-py3-none-manylinux_2_35_x86_64.whl
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fddbadf15c690f988cd887db779d0be309177765 pyqrack-1.30.26-py3-none-win_amd64.whl
c018f087b86a9a72f3c3267a270d853f3a34af49 pyqrack-1.30.26.tar.gz