chore: update cargo.toml file to have matching copyright year

[ldetmer]

We changed logic in librarian to pull the correct copyright year from the cargo.toml file header. For all libraries except for wkt this works correctly, but wkt seems to have a mismatch where cargo.toml's copyright year is 2024 but the generated files are all copyrighted 2025. This PR updates cargo.toml to match the generated files.

Alternatively the files could be updated to have 2024, if that is preferred.

Fixes googleapis/librarian#3405

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.72%. Comparing base (1830c77) to head (1ee5a52).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4144   +/-   ##
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  Coverage   94.72%   94.72%           
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  Files         184      184           
  Lines        6933     6933           
=======================================
  Hits         6567     6567           
  Misses        366      366           

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[dbolduc]

We changed logic in librarian to pull the correct copyright year from the Cargo.toml.

This sounds wrong. Why isn't copyright year an option in the sidekick configuration?

It also seems backwards when most Cargo.tomls are fully generated from the sidekick configuration...

wkt seems to have a mismatch where cargo.toml's copyright year is 2024 but the generated files are all copyrighted 2025

That's because src/wkt/Cargo.toml was added in 2024 and src/wkt/src/generated/... were added in 2025. The current values are correct.

[ldetmer]

thanks for the information, will close this and instead make fix in librarian logic