Travis CI: Upgrade to jammy

cclauss · web-flow · commit e4b9664adbf9 · 2023-06-25T16:25:52.000+02:00
https://docs.travis-ci.com/user/reference/linux/
diff --git a/.travis.yml b/.travis.yml
@@ -1,4 +1,4 @@
-dist: focal
+dist: jammy
 language: node_js
 node_js:
   - stable
