jessie-updates InRelease: The following signatures were invalid: KEYEXPIRED

[AutosenseMachineUser]

Hi there,
our github workflow has ben failing since yesterday due what seems to be an expired gpg key. I reckon your repository has not been updated in a couple of years so we suspect the error is originating from here.

Can you please take a look into it? Our implementation is identical to the one in your readme, and we have not encountered this issue in the 2+ years we've been using github-action-git-crypt-unlock

Step 10/15 : RUN apt-get update && apt-get install -y   bash   curl   git   g++   make   openssl   libssl-dev
   ---> Running in d3bd053a489a
  Ign http://deb.debian.org/ jessie InRelease
  Get:1 http://deb.debian.org jessie-updates InRelease [16.3 kB]
  Get:2 http://security.debian.org jessie/updates InRelease [44.9 kB]
  Get:3 http://deb.debian.org jessie Release.gpg [1652 B]
  Get:4 http://deb.debian.org jessie Release [77.3 kB]
  Ign http://deb.debian.org jessie-updates InRelease
  Get:5 http://deb.debian.org jessie-updates/main amd[64](https://github.com/Springworks/starlight/actions/runs/3522657002/jobs/5905886249#step:2:64) Packages [20 B]
  Ign http://deb.debian.org/ jessie Release
  Get:6 http://deb.debian.org jessie/main amd64 Packages [9098 kB]
  Get:7 http://security.debian.org/ jessie/updates/main amd64 Packages [992 kB]
  Fetched 10.2 MB in 7s (1367 kB/s)
  Reading package lists...
  W: GPG error: http://deb.debian.org jessie-updates InRelease: The following signatures were invalid: KEYEXPIRED 1[66](https://github.com/Springworks/starlight/actions/runs/3522657002/jobs/5905886249#step:2:66)8891673
  W: GPG error: http://deb.debian.org/ jessie Release: The following signatures were invalid: KEYEXPIRED 1668891[67](https://github.com/Springworks/starlight/actions/runs/3522657002/jobs/5905886249#step:2:67)3

[kelly-sovacool]

@AutosenseMachineUser have y'all found a work-around to this, perhaps an alternative to git-crypt since it seems this project is no longer maintained?