Infrastructure: add GH Action to check coding style from .editorconfig

.github/workflows/pr-coding-style.yml

@@ -0,0 +1,23 @@
+name: Coding style check
+
+on:
+  pull_request:
+    types: [opened, reopened, edited, synchronize, review_requested]
+    paths:
+      - lib/**
+      - packages/**
+      - extensions/**
+      - tools/**
+
+concurrency:
+  group: coding-style-${{github.event.pull_request.number}}
+  cancel-in-progress: true
+
+jobs:
+  editorconfig:
+    name: "Coding style check"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: editorconfig-checker/action-editorconfig-checker@main
+      - run: editorconfig-checker