Update push.sh OS supported versions

[tcarreira]

This script is publishing to non-supported OS versions, and not publishing to newer ones.

SUPPORTED_UBUNTU_VERSIONS="trusty xenial zesty bionic focal jammy"
SUPPORTED_REDHAT_VERSIONS="6 7"
SUPPORTED_FEDORA_VERSIONS="31 32 33"
SUPPORTED_DEBIAN_VERSIONS="jessie stretch buster bullseye"
SUPPORTED_MINT_VERSIONS="sarah serena sonya sylvia tara tessa tina tricia ulyana"

I would suggest a a different approach:

• [ ] Restrict OSs: Publishing .deb and .rpm should suffice (see comment)
• [x] Debian versions: jessie, stretch, buster, bullseye (7-wheezy EOL for ELTS was ~2020-06-30 - source)
• [ ] Redhat versions: 6, 7, 8, 9 (according to this trusted source)

[tcarreira]

Here it is the documentation on how to use the same deb to multiple distributions: https://packagecloud.io/docs#deb_any Same for rpm: https://packagecloud.io/docs#rpm_any