[Bug]: debian jessie archive repos

[mbl-35]

(Optional) Error message

Some index files failed to download. They have been ignored, or old ones used instead

What went wrong?

root@php-5.5.38 in /shared/httpd $ apt update
Get:1 http://security.debian.org jessie/updates InRelease [44.9 kB]
Ign http://deb.debian.org jessie InRelease
Ign http://deb.debian.org jessie-updates InRelease
Ign http://deb.debian.org jessie Release.gpg
Ign http://deb.debian.org jessie-updates Release.gpg
Ign http://deb.debian.org jessie Release
Ign http://deb.debian.org jessie-updates Release
Get:2 http://security.debian.org jessie/updates/main amd64 Packages [992 kB]
Err http://deb.debian.org jessie/main amd64 Packages
  404  Not Found
Err http://deb.debian.org jessie-updates/main amd64 Packages
  404  Not Found
Fetched 1,037 kB in 1s (523 kB/s)
W: Failed to fetch http://deb.debian.org/debian/dists/jessie/main/binary-amd64/Packages  404  Not Found

W: Failed to fetch http://deb.debian.org/debian/dists/jessie-updates/main/binary-amd64/Packages  404  Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.

not able to install package (CI will failed)

Expected behaviour

working: apt update and apt install

Changing the repository to archive will produce GPG key errors as follow:

$ docker run -it devilbox/php-fpm:5.5-slim /bin/bash
root@php-5.5.38 in /shared/httpd $ cp /etc/apt/sources.list /etc/apt/sources.list.save
root@php-5.5.38 in /shared/httpd $ sed -e 's/deb\.debian\.org/archive.debian.org/' \
      -e 's/jessie-updates/jessie/' \
      /etc/apt/sources.list | \
    sort | uniq | tee /etc/apt/sources.list

root@php-5.5.38 in /shared/httpd $ apt update
Get:1 http://security.debian.org jessie/updates InRelease [44.9 kB]
Ign http://archive.debian.org jessie InRelease
Get:2 http://archive.debian.org jessie Release.gpg [2,420 B]
Get:3 http://archive.debian.org jessie Release [148 kB]
Ign http://archive.debian.org jessie Release
Get:4 http://security.debian.org jessie/updates/main amd64 Packages [992 kB]
Get:5 http://archive.debian.org jessie/main amd64 Packages [9,098 kB]
Fetched 10.3 MB in 1s (5,593 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
W: GPG error: http://archive.debian.org jessie Release: The following signatures were invalid: KEYEXPIRED 1587841717
```|

Can't find a non expired signature KEY .. 

### How can we reproduce the bug?

```bash
$ docker run -it devilbox/php-fpm:5.5-slim /bin/bash
root@php-5.5.38 in /shared/httpd $ apt update

Host Operating System

Linux

Host Platform (amd64, arm64, other)

amd64

(Linux only) Is SELinux enabled?

No, SELinux is disabled

Docker version

Docker version 20.10.18, build b40c2f6

Log: docker logs

no logs

(Optional) Additional information

No response