Je reprend ce qui a été proposé dans l'article et marche très bien (même si c'est un peu de la bidouille):

1. Install GPG as you normally would
2. Make sure it is executable in the command line / PowerShell (as in: make sure the bin/ subdirectory of the GPG program directory is included in the PATH environment variable)
3. Go to the Git for Windows program directory (e.g. C:\Program Files\Git)
4. Navigate to the usr/bin/ subdirectory and rename gpg.exe to something else (like gpg_disabled.exe)
5. Close any open Git Bash instances and start a fresh one
6. Check the GPG version via gpg --version