Bump opencv-python to 4.6.0.66 to fix Python 3.11 installation

[akladiev]

We use this requirement file in OpenVINO pre-commits for pip-conflicts check that is tested with Python 3.11.
After #4029 was merged without waiting for CI, pre-commits in OV repo became broken:

[2025-12-11T14:12:54.340Z]   Using cached opencv-python-4.5.4.60.tar.gz (89.8 MB)
[2025-12-11T14:12:54.340Z]   Installing build dependencies: started
[2025-12-11T14:12:54.340Z]   Installing build dependencies: finished with status 'error'
[2025-12-11T14:12:54.340Z]   error: subprocess-exited-with-error
[2025-12-11T14:12:54.340Z]   
[2025-12-11T14:12:54.340Z]   × installing build dependencies for opencv-python did not run successfully.
[2025-12-11T14:12:54.340Z]   │ exit code: 1
[2025-12-11T14:12:54.340Z]   ╰─> [20 lines of output]
[2025-12-11T14:12:54.341Z]       Looking in indexes: https://pypi.org/simple, https://download.pytorch.org/whl/cpu, https://download.pytorch.org/whl/cpu, https://download.pytorch.org/whl/cpu
[2025-12-11T14:12:54.341Z]       Ignoring numpy: markers 'python_version == "3.6" and platform_machine != "aarch64" and platform_machine != "arm64"' don't match your environment
[2025-12-11T14:12:54.341Z]       Ignoring numpy: markers 'python_version == "3.7" and platform_machine != "aarch64" and platform_machine != "arm64"' don't match your environment
[2025-12-11T14:12:54.341Z]       Ignoring numpy: markers 'python_version == "3.8" and platform_machine != "aarch64" and platform_machine != "arm64"' don't match your environment
[2025-12-11T14:12:54.341Z]       Ignoring numpy: markers 'python_version <= "3.9" and sys_platform == "linux" and platform_machine == "aarch64"' don't match your environment
[2025-12-11T14:12:54.341Z]       Ignoring numpy: markers 'python_version <= "3.9" and sys_platform == "darwin" and platform_machine == "arm64"' don't match your environment
[2025-12-11T14:12:54.341Z]       Ignoring numpy: markers 'python_version == "3.9" and platform_machine != "aarch64" and platform_machine != "arm64"' don't match your environment
[2025-12-11T14:12:54.341Z]       Collecting setuptools
[2025-12-11T14:12:54.341Z]         Using cached setuptools-80.9.0-py3-none-any.whl.metadata (6.6 kB)
[2025-12-11T14:12:54.341Z]       Collecting wheel
[2025-12-11T14:12:54.341Z]         Using cached wheel-0.45.1-py3-none-any.whl.metadata (2.3 kB)
[2025-12-11T14:12:54.341Z]       Collecting scikit-build
[2025-12-11T14:12:54.341Z]         Using cached scikit_build-0.18.1-py3-none-any.whl.metadata (18 kB)
[2025-12-11T14:12:54.341Z]       Collecting cmake
[2025-12-11T14:12:54.341Z]         Using cached cmake-4.2.0-py3-none-manylinux2014_x86_64.manylinux_2_17_x86_64.whl.metadata (6.5 kB)
[2025-12-11T14:12:54.341Z]       Collecting pip
[2025-12-11T14:12:54.341Z]         Using cached pip-25.3-py3-none-any.whl.metadata (4.7 kB)
[2025-12-11T14:12:54.341Z]       ERROR: Ignored the following versions that require a different python version: 1.21.2 Requires-Python >=3.7,<3.11; 1.21.3 Requires-Python >=3.7,<3.11; 1.21.4 Requires-Python >=3.7,<3.11; 1.21.5 Requires-Python >=3.7,<3.11; 1.21.6 Requires-Python >=3.7,<3.11
[2025-12-11T14:12:54.341Z]       ERROR: Could not find a version that satisfies the requirement numpy==1.21.2 (from versions: 1.3.0, 1.4.1, 1.5.0, 1.5.1, 1.6.0, 1.6.1, 1.6.2, 1.7.0, 1.7.1, 1.7.2, 1.8.0, 1.8.1, 1.8.2, 1.9.0, 1.9.1, 1.9.2, 1.9.3, 1.10.0.post2, 1.10.1, 1.10.2, 1.10.4, 1.11.0, 1.11.1, 1.11.2, 1.11.3, 1.12.0, 1.12.1, 1.13.0, 1.13.1, 1.13.3, 1.14.0, 1.14.1, 1.14.2, 1.14.3, 1.14.4, 1.14.5, 1.14.6, 1.15.0, 1.15.1, 1.15.2, 1.15.3, 1.15.4, 1.16.0, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.16.6, 1.17.0, 1.17.1, 1.17.2, 1.17.3, 1.17.4, 1.17.5, 1.18.0, 1.18.1, 1.18.2, 1.18.3, 1.18.4, 1.18.5, 1.19.0, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.19.5, 1.20.0, 1.20.1, 1.20.2, 1.20.3, 1.21.0, 1.21.1, 1.22.0, 1.22.1, 1.22.2, 1.22.3, 1.22.4, 1.23.0, 1.23.1, 1.23.2, 1.23.3, 1.23.4, 1.23.5, 1.24.0, 1.24.1, 1.24.2, 1.24.3, 1.24.4, 1.25.0, 1.25.1, 1.25.2, 1.26.0, 1.26.1, 1.26.2, 1.26.3, 1.26.4, 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5, 2.2.6, 2.3.0, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.3.5, 2.4.0rc1)
[2025-12-11T14:12:54.342Z]       ERROR: No matching distribution found for numpy==1.21.2
[2025-12-11T14:12:54.342Z]       [end of output]
[2025-12-11T14:12:54.342Z]   
[2025-12-11T14:12:54.342Z]   note: This error originates from a subprocess, and is likely not a problem with pip.
[2025-12-11T14:12:54.342Z] ERROR: Failed to build 'opencv-python' when installing build dependencies for opencv-python

4.5.4.60 version cannot be installed to Python 3.11 (also confirmed locally).
Failure is also seen in the post-commit for 8e996db