Enable PTQ for visual prompting model

[sungchul2]

Summary

This PR includes:

• enable PTQ for visual prompting task
• update opset version 12 -> 13
• update unit / e2e tests

mDice	torch	ov IR (fp32)	ov IR (int8, only encoder)	ov IR (int8, encoder + decoder)
	0.9482	0.9471	0.9470	0.9423

throughput	fp32	int8
encoder	0.85 fps	1.21 fps (+42%)
decoder	122.53 fps	141.78 fps (+16%)

How to test

$ tox -vv -e unittest-all-py310-pt1 -- tests/unit/algorithms/visual_prompting/tasks/test_openvino.py
============================================================= 11 passed, 12 warnings in 3.27s ==============================================================
Name                                                                                                                Stmts   Miss  Cover   Missing
-------------------------------------------------------------------------------------------------------------------------------------------------
src/otx/algorithms/visual_prompting/tasks/openvino.py                                                                 247     14    94%   275-277, 304-305, 309-310, 349, 412, 415, 435, 438, 452, 478

$ tox -vv -e tests-all-py310-pt1 -- tests/integration/cli/visual_prompting
=================================================== 8 passed, 2 skipped, 1 warning in 140.01s (0:02:20) ====================================================

$ tox -vv -e tests-all-py310-pt1 -- tests/e2e/cli/visual_prompting
======================================================== 10 passed, 2 warnings in 347.16s (0:05:47) ========================================================

Checklist

• I have added unit tests to cover my changes.​
• I have added integration tests to cover my changes.​
• I have added e2e tests for validation.
• I have added the description of my changes into CHANGELOG in my target branch (e.g., CHANGELOG in develop).​
• I have updated the documentation in my target branch accordingly (e.g., documentation in develop).
• I have linked related issues.

License

• I submit my code changes under the same Apache 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) 2023 Intel Corporation
# SPDX-License-Identifier: Apache-2.0

[wonjuleee]

LGTM!

[harimkang]

LGTM,