ci: lint should use ubuntu-22.04

github migrated the ubuntu-latest image to point to ubuntu-24.04
recently and it appears the lint tests have regressed.  The
simplest solution is to just temporarily move it back until it
can be further evaluated.

Signed-off-by: Brad House <brad@brad-house.com>

Author: bradh352

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ on: [push, pull_request]
 
 jobs:
   lint:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4