Drop years from license headers associated to CVAT.ai Corporation

[bsekachev]

Motivation and context

1. Updating license headers each year is painful and adds overhead to the development team.
2. Storing years in a copyright seems to be useless for an open source license as code is free anyway.

Some more thoughts may be found here:
https://aboutcode.org/2023/update-copyright-each-new-year/

How has this been tested?

Checklist

• I submit my changes into the develop branch
• I have created a changelog fragment
• I have updated the documentation accordingly
• I have added tests to cover my changes
• I have linked related issues (see GitHub docs)

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.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.82%. Comparing base (39d4cb0) to head (da512c8).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #8968   +/-   ##
========================================
  Coverage    73.82%   73.82%           
========================================
  Files          417      417           
  Lines        44589    44589           
  Branches      4031     4031           
========================================
  Hits         32919    32919           
  Misses       11670    11670           

Components	Coverage Δ
cvat-ui	78.25% <ø> (ø)
cvat-server	70.06% <ø> (ø)