Bump default ubuntu fallback release to 22.04 Jammy LTS

bin/xt-guess-suite-and-mirror

@@ -62,7 +62,7 @@ my %fallback_mirror = ( Debian => 'http://deb.debian.org/debian/',
 # have aliases like stable or testing, so we take the nearest LTS
 # release which is 10.04 at the time of writing.
 my %fallback_suite = ( Debian => 'stable',
-                       Ubuntu => 'bionic' );
+                       Ubuntu => 'jammy' );
 
 # Where to look for the sources.list to parse
 my @sources_list_files = ( '/etc/apt/sources.list',

debian/changelog

@@ -3,6 +3,7 @@ xen-tools (4.9.2-1) UNRELEASED; urgency=medium
   * New upstream maintenance release
     + Update list of Ubuntu and Debian releases.
     + Fix bashism in release testing target "tidy".
+    + Bump default ubuntu fallback release to 22.04 Jammy LTS.
   * Update upstream signing key to update its expiry date.
   * Depend and Build-Depend on non-(build-)essential package
     mount. (Closes: #1027383)