ci: Downgrade tests runner to Ubuntu 22.04

Author: NelsonBN

.github/workflows/tests.yml

@@ -23,7 +23,7 @@ jobs:
 
   test-project:
     name: "Test nuget"
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     permissions:
       contents: read
       issues: read