regenerate InRelease file

[Abdelkader Belahcene <abelahcene@gmail.com>]

Hi all,
I used apt-mirror  to create my  own local  mirror?  that 's fine.

The problem now the date in  Inrelease  is expired,  and I can't use
it , until I changed the date,

I did it directly in the file !!!  unfortunately  the signature is not
valid,  so I want to regenerate the release for my local mirror,   I
don't want new  packages,  JUST to regenerate the file Inrelease with
correct date.
something with gpg program  I suppose???
 Please someone can send me the command.
Thanks a lot
regards
abd_bela