add jessie and stretch as ignored debian versions

[qhess34]

As Debian Jessie and Stretch are not LTS anymore, the packages are not reachables from http://ftp.debian.org/debian/dists/ On pakiti, when using the cron which synchronize the VDS we get a 404 error on it :

`root@XXXXX:~# php /var/www/pakiti/src/modules/cli/vds.php -c synchronize PHP Warning: file_get_contents(http://ftp.debian.org/debian/dists/stretch/non-free/source/Sources.gz): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/pakiti/src/common/Utils.php on line 145 PHP Fatal error: Uncaught Exception: Error reading Debian Source indices: Error while getting contents (file_get_contents(http://ftp.debian.org/debian/dists/stretch/non-free/source/Sources.gz): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found ) in /var/www/pakiti/src/modules/vds/sources/CveSubSources/Debian.php:119 Stack trace:

0 /var/www/pakiti/src/modules/vds/sources/CveSubSources/Debian.php(129): Debian->update_package_mapping('stretch')

1 /var/www/pakiti/src/modules/vds/sources/CveSubSources/Debian.php(231): Debian->add_packages(Array, 'stretch', 'thunderbird', Array)

2 /var/www/pakiti/src/modules/vds/lib/SubSource.php(223): Debian->processAdvisories('[14 May 2023] D...', '5')

3 /var/www/pakiti/src/modules/vds/sources/CveSource.php(47): SubSource->retrieveVulnerabilities()

4 /var/www/pakiti/src/modules/vds/VdsModule.php(30): CveSource->retrieveVulnerabilities()

5 /var/www/pakiti/src/modules/cli/vds.php(138): VdsModule->synchronize()

6 {main}

thrown in /var/www/pakiti/src/modules/vds/sources/CveSubSources/Debian.php on line 119`

This PR disable those Debian distributions.

[tauceti2]

Thanks qhess34.