Fix to not export absolute media path in Datumaro and DatumaroBinary formats

[vinnamkim]

Summary

• Ticket no. 106811

How to test

This change will be covered by move_save_dir=True:

datumaro/tests/utils/test_utils.py

Lines 304 to 307 in 7c6541a

	if move_save_dir:
	save_dir = tmp_dir
	for file in os.listdir(test_dir):
	shutil.move(osp.join(test_dir, file), save_dir)

Checklist

• I have added unit tests to cover my changes.​
• I have added integration tests to cover my changes.​
• I have added the description of my changes into CHANGELOG.​
• I have updated the documentation accordingly

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) 2023 Intel Corporation
#
# SPDX-License-Identifier: MIT

[codecov-commenter]

Codecov Report

Patch coverage: 90.24% and project coverage change: -0.02 ⚠️

Comparison is base (b501015) 78.61% compared to head (7c6541a) 78.60%.

Additional details and impacted files

@@                Coverage Diff                 @@
##           releases/1.1.0     #896      +/-   ##
==================================================
- Coverage           78.61%   78.60%   -0.02%     
==================================================
  Files                 205      205              
  Lines               25067    25078      +11     
  Branches             5029     5029              
==================================================
+ Hits                19706    19712       +6     
- Misses               4229     4233       +4     
- Partials             1132     1133       +1     

Flag	Coverage Δ
macos-11_Python-3.8	77.58% <90.24%> (-0.02%)	⬇️
ubuntu-20.04_Python-3.8	78.59% <90.24%> (-0.02%)	⬇️
windows-2019_Python-3.8	78.53% <90.24%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
datumaro/plugins/data_formats/datumaro/exporter.py	94.93% <81.81%> (-0.79%)	⬇️
...ugins/data_formats/datumaro_binary/mapper/media.py	88.37% <84.61%> (+0.13%)	⬆️
datumaro/components/exporter.py	84.07% <100.00%> (-0.77%)	⬇️
datumaro/plugins/data_formats/datumaro/base.py	93.66% <100.00%> (-1.38%)	⬇️
...umaro/plugins/data_formats/datumaro_binary/base.py	93.97% <100.00%> (+0.14%)	⬆️
...ata_formats/datumaro_binary/mapper/dataset_item.py	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

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[sooahleex]

Looks good to me.

[bonhunko]

LGTM