fix neogit gpg pinentry timeout

[mtyszkiewicz1]

GPG prompts for key passphrase when it's ttl expires. The pinentry program gets displayed on the screen properly but only for ~2 seconds until the following error occurs:

you can still type your password, but then you suddenly get another error:

then after a moment the malformed password is entered (failed attempt, try again)

[mtyszkiewicz]

docs: https://github.com/NeogitOrg/neogit/blob/dc36aa4b1172189a2e80cbdbd4be2e884e60c09e/doc/neogit.txt#L239C1-L239C35, related issue: NeogitOrg/neogit#1245