Update version string to 1.8.0

[yunchu]

Summary

How to test

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) 2024 Intel Corporation
#
# SPDX-License-Identifier: MIT

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (releases/1.8.0@299b2c0). Learn more about missing BASE report.

Additional details and impacted files

@@                Coverage Diff                @@
##             releases/1.8.0    #1565   +/-   ##
=================================================
  Coverage                  ?   81.04%           
=================================================
  Files                     ?      276           
  Lines                     ?    32408           
  Branches                  ?     6590           
=================================================
  Hits                      ?    26265           
  Misses                    ?     4691           
  Partials                  ?     1452           

Flag	Coverage Δ
ubuntu-20.04_Python-3.10	81.03% <ø> (?)
windows-2022_Python-3.10	81.01% <ø> (?)

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