Update copyright year to 2024

[lbianchi-lbl]

Changes proposed in this PR:

• Update copyright year in headers (with addheader)
• Update copyright year in other files a/o strings

Legal Acknowledgement

By contributing to this software project, I agree to the following terms and conditions for my contribution:

1. I agree my contributions are submitted under the copyright and license terms described in the LICENSE.md file at the top level of this directory.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 38.76%. Comparing base (295119e) to head (1a92aa7).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1207   +/-   ##
=======================================
  Coverage   38.76%   38.76%           
=======================================
  Files         164      164           
  Lines       37032    37032           
  Branches     6132     6132           
=======================================
  Hits        14354    14354           
  Misses      21550    21550           
  Partials     1128     1128           

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[ksbeattie]

LGTM