fix build with cmake-4.0

[daizhirui]

-DCMAKE_POLICY_VERSION_MINIMUM=3.5 is needed for librealsense and civetweb when building with cmake-4.0 and the following arguments:

-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_C_COMPILER=/usr/bin/gcc-13 \
-DCMAKE_CXX_COMPILER=/usr/bin/g++-13 \
-G "Unix Makefiles" \
-DCMAKE_INSTALL_PREFIX=/usr \
-DBUILD_SHARED_LIBS=ON \
-DCMAKE_VERBOSE_MAKEFILE=ON \
-DCMAKE_MODULE_PATH=/usr/lib/cmake/OpenVDB \
-DUSE_SYSTEM_ASSIMP=ON \
-DUSE_SYSTEM_CURL=ON \
-DUSE_SYSTEM_BLAS=OFF \
-DBUILD_SYCL_MODULE=OFF \
-DUSE_SYSTEM_EIGEN3=ON \
-DUSE_SYSTEM_EMBREE=ON \
-DUSE_SYSTEM_TBB=ON \
-DOPEN3D_USE_ONEAPI_PACKAGES=OFF \
-DUSE_SYSTEM_FMT=ON \
-DUSE_SYSTEM_GLEW=ON \
-DUSE_SYSTEM_GLFW=ON \
-DUSE_SYSTEM_GOOGLETEST=ON \
-DUSE_SYSTEM_JPEG=ON \
-DUSE_SYSTEM_JSONCPP=ON \
-DUSE_SYSTEM_LIBLZF=ON \
-DUSE_SYSTEM_NANOFLANN=ON \
-DUSE_SYSTEM_OPENSSL=ON \
-DUSE_SYSTEM_PNG=ON \
-DUSE_SYSTEM_PYBIND11=ON \
-DUSE_SYSTEM_QHULLCPP=ON \
-DUSE_SYSTEM_VTK=ON \
-DUSE_SYSTEM_ZEROMQ=ON \
-DBUILD_LIBREALSENSE=ON \
-DWITH_MINIZIP=ON

Type

• Bug fix (non-breaking change which fixes an issue): Fixes #
• New feature (non-breaking change which adds functionality). Resolves #
• Breaking change (fix or feature that would cause existing functionality to not work as expected) Resolves #

Motivation and Context

Checklist:

• I have run python util/check_style.py --apply to apply Open3D code style
  to my code.
• This PR changes Open3D behavior or adds new functionality.
  • Both C++ (Doxygen) and Python (Sphinx / Google style) documentation is
    updated accordingly.
  • I have added or updated C++ and / or Python unit tests OR included test
    results (e.g. screenshots or numbers) here.
• I will follow up and update the code if CI fails.
• For fork PRs, I have selected Allow edits from maintainers.

Description

[update-docs]

Thanks for submitting this pull request! The maintainers of this repository would appreciate if you could update the CHANGELOG.md based on your changes.

[ssheorey]

Thanks @daizhirui !