ci: Prevent Maven github action to run when changing Markdown files

Author: FanJups

.github/workflows/maven.yml

@@ -6,8 +6,12 @@ name: Java CI with Maven
 on:
   push:
     branches: [ main ]
+    paths-ignore:
+      - '**.md'
   pull_request:
     branches: [ main ]
+    paths-ignore:
+      - '**.md'
 
 permissions:
   contents: read