Set of updates to address new linter raised issues, and relax year check

[peterbroadhurst]

Proposed changes

The updated linter raised a lot of issues for me locally, and I found I could not convince the linter to only detect copyright headers actually changed so am proposing we relax the check there.

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Types of changes

• Bug fix
• New feature added
• Documentation Update

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Please make sure to follow these points

• I have read the contributing guidelines.
• I have performed a self-review of my own code or work.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generates no new warnings.
• My Pull Request title is in format < issue name > eg Added links in the documentation.
• I have added tests that prove my fix is effective or that my feature works.
• My changes have sufficient code coverage (unit, integration, e2e tests).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.95%. Comparing base (8a0d5c4) to head (6559f7a).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1649      +/-   ##
==========================================
+ Coverage   99.92%   99.95%   +0.03%     
==========================================
  Files         337      337              
  Lines       29590    29604      +14     
==========================================
+ Hits        29569    29592      +23     
+ Misses         15        8       -7     
+ Partials        6        4       -2     

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