Merge pull request #662 from thaJeztah/remove_ubuntu_2104

[master] deb: remove Ubuntu 21.04 "Hirsute Hippo" as it's EOL

Author: thaJeztah

Jenkinsfile

@@ -14,7 +14,6 @@ def pkgs = [
     [target: "raspbian-bullseye",        image: "balenalib/rpi-raspbian:bullseye",        arches: ["armhf"]],                     // Debian/Raspbian 11 (Next stable)
     [target: "ubuntu-bionic",            image: "ubuntu:bionic",                          arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 18.04 LTS (End of support: April, 2023. EOL: April, 2028)
     [target: "ubuntu-focal",             image: "ubuntu:focal",                           arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 20.04 LTS (End of support: April, 2025. EOL: April, 2030)
-    [target: "ubuntu-hirsute",           image: "ubuntu:hirsute",                         arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 21.04 (EOL: January, 2022)
     [target: "ubuntu-impish",            image: "ubuntu:impish",                          arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 21.10 (EOL: July, 2022)
     [target: "ubuntu-jammy",             image: "ubuntu:jammy",                           arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 22.04 LTS (End of support: April, 2027. EOL: April, 2032)
 ]