feat: add support ubuntu26.04

Author: Tonguechaude

manifests/globals.pp

@@ -220,6 +220,7 @@
         /^(21.04|21.10)$/ => '13',
         /^(22.04)$/ => '14',
         /^(24.04)$/ => '16',
+        /^(26.04)$/ => '18',
         default => undef,
       },
       default => undef,

metadata.json

@@ -80,7 +80,8 @@
         "18.04",
         "20.04",
         "22.04",
-        "24.04"
+        "24.04",
+        "26.04"
       ]
     },
     {