Route deprecated -version to version subcommand

[puerco]

Summary

This commit fixes the routing of the deprecated -version flag to avoid translating it to --version. Instead, it routes the flag to the version subcommand, prefixing it with the deprecation warning.

Signed-off-by: Adolfo García Veytia (Puerco) puerco@chainguard.dev

Ticket Link

Fixes #1811

Release Note

The -version flag now works as other deprecated flags, patching it to the expected output and preceding it with a warning

[codecov-commenter]

Codecov Report

Merging #1854 (d45f1b4) into main (d7a7270) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1854   +/-   ##
=======================================
  Coverage   28.74%   28.74%           
=======================================
  Files         132      132           
  Lines        8078     8078           
=======================================
  Hits         2322     2322           
  Misses       5449     5449           
  Partials      307      307           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d7a7270...d45f1b4. Read the comment docs.

[puerco]

Lol, this now has officially Too Much Engineering™ for a simple fix I fixed out of rage :D

OK, should now work as expected, please PTAL @cpanato :

❯ cosign sign -help
WARNING: the -help flag is deprecated and will be removed in a future release. Please use the --help flag instead.
[...]

❯ cosign -version
WARNING: the -version flag is deprecated and will be removed in a future release. Please use the version subcommand instead.