ci: do not run test.yml on doc changes

Author: rffontenelle

.github/workflows/test.yml

@@ -1,5 +1,11 @@
 name: Test
-on: [push, pull_request]
+on:
+  push:
+    paths-ignore:
+      - 'doc/**'
+  pull_request:
+    paths-ignore:
+      - 'doc/**'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}