Drop Ubuntu 20.04 support

Author: Valantin

lib/facter/easyrsa.rb

@@ -12,7 +12,7 @@
       binaryv3 = '/usr/share/easy-rsa/3/easyrsa'
     when %r{Ubuntu|Debian}
       binaryv3 = case operatingsystemrelease
-                 when %r{|11|12|18.04|20.04|22.04|24.04}
+                 when %r{|11|12|22.04|24.04}
                    '/usr/share/easy-rsa/easyrsa'
                  else
                    '/usr/share/doc/openvpn/examples/easy-rsa/3.0/easyrsa'

metadata.json

@@ -12,7 +12,6 @@
     {
       "operatingsystem": "Ubuntu",
       "operatingsystemrelease": [
-        "20.04",
         "22.04",
         "24.04"
       ]