Expand .dockerignore and CI exclusions

Change-Id: Ib794bdd386b9fe6803d811585ce220e57ab56290
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c407cd1..a3500bd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,10 +2,14 @@
 on:
   push:
     paths-ignore:
-      - 'docs/**'
       - '*.conf.sample*'
-      - '*.md'
+      - 'Dockerfile'
+      - '.dockerignore'
+      - 'docs/**'
+      - '.editorconfig'
+      - '.gitignore'
       - '.mailmap'
+      - '*.md'
   workflow_dispatch:
 
 permissions: {}