Revert Open3D to 0.11.2

[ngaloppo]

Motivation and context

This change fixes a dependency conflict that causes a very old version
of Jinja2 to be installed (see #4618). Open3D is only used for PCD
conversion, so this reverting to an older version is acceptable.

This is a temporary workaround. As a future update we'd like to get rid
of the Open3D dependency, since it pulls in a bunch of unnecessary
dependencies. Also, we'd like to make python dependency resolution more
robust by pinning all (recursive) dependencies to specific versions with
a tool like pip-tools or poetry.

Fixes #4618.

How has this been tested?

Not tested yet. Will rely on CI to test.

Checklist

• I submit my changes into the develop branch
• I have added a description of my changes into CHANGELOG file
• I have updated the documentation accordingly
• I have added tests to cover my changes
• I have linked related issues (read github docs)
• I have increased versions of npm packages if it is necessary (cvat-canvas,
  cvat-core, cvat-data and cvat-ui)

License

• I submit my code changes under the same MIT License that covers the project.
  Feel free to contact the maintainers if that's a concern.
• I have updated the license header for each file (see an example below)

# Copyright (C) 2022 Intel Corporation
#
# SPDX-License-Identifier: MIT

[nmanovic]

@ngaloppo , it looks good! Usually we add a line into CHANGELOG.md to track changes: https://github.com/openvinotoolkit/cvat/blob/develop/CHANGELOG.md

[spradeep28]

Changes looking good

[kresimirfijacko]

how is it possible to install open3d==0.11.2 when it is neccessary to use python3.9 (as stated in documentation for developing locally) ?
the thing is - output of pip install gives:

pip install open3d==0.11.2

ERROR: Could not find a version that satisfies the requirement open3d==0.11.2 (from versions: 0.14.1, 0.15.2)
ERROR: No matching distribution found for open3d==0.11.2