Add yaml to triggers

Author: ppfeister

.github/workflows/regression.yml

@@ -8,13 +8,17 @@ on:
       - '**/*.py'
       - '**/*.ini'
       - '**/*.toml'
+      - '**/*.yml'
+      - '**/*.yaml'
   push:
     branches: [ master ]
     paths:
       - '**/*.json'
       - '**/*.py'
       - '**/*.ini'
       - '**/*.toml'
+      - '**/*.yml'
+      - '**/*.yaml'
 
 jobs:
   tox-matrix: