[Feat]: gpg sign with passphrase

[AndreasAugustin]

Describe the feature

enable gpg sign with a passphrase

Use Case

always good to have a passphrase

Proposed Solution

with #204 it is possible to sign commits without passphrase.
There was an error within #436 and the feature for passphrase was postponed.
Actually the issue is within [src/gpg_no_tty.sh][src/gpg_no_tty.sh]

    # FIXME(anau) the next line is a bug
    echo -e "${GPG_PASSPHRASE}" |  gpg --pinentry-mode loopback --batch --yes --passphrase-fd 0 "$@" <&0

Acknowledgements

• I may be able to implement this feature request