[github] Signing commits

[mxochicale]

🚀 Feature

https://docs.github.com/en/authentication/managing-commit-signature-verification/signing-commits

[mxochicale]

21:51:24. git.c:463 trace: built-in: git commit -S -m 'minor changes to test signed commit'
21:51:24. run-command.c:659 trace: run_command: gpg --status-fd=2 -bsau 'mxochicale <@gmail.com>'
error: gpg failed to sign the data:
gpg: skipped "mxochicale <@gmail.com>": No secret key
[GNUPG:] INV_SGNR 9 mxochicale <@gmail.com>
[GNUPG:] FAILURE sign 17
gpg: signing failed: No secret key

fatal: failed to write commit object

[mxochicale]

d2488eb