Add .editorconfig

Change-Id: Ifdb0d98f4e3011b70168644c86d9e225df749b15
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ad52af3..4a625ca 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,14 @@
 name: CI
 on:
   push:
+    branches:
+      - '**'
+    paths-ignore:
+      - '*.conf.sample*'
+      - '.editorconfig'
+      - '.gitignore'
+      - '.mailmap'
+      - '*.md'
   workflow_dispatch:
 
 permissions: {}