Update distros for packagecloud.io

Remove several distro versions which are now EOL.  In addition, add a
new version of Linux Mint and OpenSUSE, and update the EOL date for some
distros.

Note that we have not added Fedora 36 or Ubuntu kinetic because they are
not yet available on packagecloud.io.

Author: bk2204

script/packagecloud.rb

@@ -32,15 +32,11 @@
     "scientific/7",
     # opensuse https://en.opensuse.org/Lifetime
     # or https://en.wikipedia.org/wiki/OpenSUSE_version_history
-    "opensuse/15.1", # EOL 2020-11
+    "opensuse/15.3", # EOL 2022-12
     # SLES EOL https://www.suse.com/lifecycle/
-    "sles/11.4", # LTSS ends 31 Mar 2022
     "sles/12.3", # LTSS ends 30 Jun 2022
     "sles/12.4",
     "sles/12.5",
-    "sles/15.0",
-    "sles/15.1",
-    "sles/15.2",
     "sles/15.3",  # Current
   ],
   "centos/8" => [
@@ -61,12 +57,12 @@
     "ubuntu/bionic",    # ESM April 2028
   ],
   "debian/10" => [
-    "debian/buster",
+    "debian/buster",    # EOL June 2024
     "linuxmint/ulyana", # EOL April 2025
     "linuxmint/ulyssa", # EOL April 2025
     "linuxmint/uma",    # EOL April 2025
+    "linuxmint/una",    # EOL April 2025
     "ubuntu/focal",     # EOL April 2025
-    "ubuntu/hirsute",   # EOL January 2022
   ],
   "debian/11" => [
     "debian/bullseye",  # Current stable