ci: skip builds for docs-only changes

Paths-ignore docs/ and *.md files to avoid unnecessary native builds

Author: bbernag

.github/workflows/ci.yml

@@ -3,8 +3,14 @@ name: CI
 on:
   push:
     branches: [main]
+    paths-ignore:
+      - 'docs/**'
+      - '*.md'
   pull_request:
     branches: [main]
+    paths-ignore:
+      - 'docs/**'
+      - '*.md'
 
 jobs:
   lint-and-test: