Raise checkout and clang-format-action version. Add execute conditions

.github/workflows/clang-format-check.yml

@@ -1,5 +1,27 @@
 name: clang-format Check
-on: [push, pull_request]
+
+env:
+  INCLUDE_REGEX: ^.*\.((((c|C)(c|pp|xx|\+\+)?$)|((h|H)h?(pp|xx|\+\+)?$))|(inl|ino|pde|proto|cu))$
+
+on:
+  push:
+    paths:
+      - '**.ino'
+      - '**.cpp'
+      - '**.hpp'
+      - '**.h'
+      - '**.c'
+      - '**.inl'
+      - '**clang-format-check.yml'
+    pull_request:
+      - '**.ino'
+      - '**.cpp'
+      - '**.hpp'
+      - '**.h'
+      - '**.c'
+      - '**.inl'
+      - '**clang-format-check.yml'
+
 jobs:
   formatting-check:
     name: Formatting Check
@@ -9,15 +31,21 @@ jobs:
         path:
           - check: './'    # path to include
             exclude: ''    # path to exclude
-          # - check: 'src'
-          #   exclude: '(Fonts)' # Exclude file paths containing "Fonts"
-          # - check: 'examples'
-          #   exclude: ''
+          #- check: 'src'
+          #  exclude: '(Fonts)' # Exclude file paths containing "Fonts"
+          #- check: 'examples'
+          #  exclude: ''
+
     steps:
-    - uses: actions/[email protected]
-    - name: Run clang-format style check for C/C++/Protobuf programs.
-      uses: jidicula/[email protected]
-      with:
-        clang-format-version: '13'
-        check-path: ${{ matrix.path['check'] }}
-        exclude-regex: ${{ matrix.path['exclude'] }}
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Run clang-format style check for C/C++/Protobuf programs.
+        uses: jidicula/[email protected] # Using include-regex 10.x or later
+        with:
+          clang-format-version: '13'
+          check-path: ${{ matrix.path['check'] }}
+          exclude-regex: ${{ matrix.path['exclude'] }}
+          include-regex: ${{ env.INCLUDE_REGEX }}