Add the code linting github workflow from app-boilerplate

.github/workflows/coding_style_checks.yml

@@ -0,0 +1,25 @@
+name: Run coding style check through reusable workflow
+
+# This workflow will run linting checks to ensure a level of uniformization among all Ledger applications.
+#
+# The presence of this workflow is mandatory as a minimal level of linting is required.
+# You are however free to modify the content of the .clang-format file and thus the coding style of your application.
+# We simply ask you to not diverge too much from the linting of the Boilerplate application.
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+      - main
+      - develop
+  pull_request:
+
+jobs:
+  check_linting:
+    name: Check linting using the reusable workflow
+    uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_lint.yml@v1
+    with:
+      source: './src'
+      extensions: 'h,c'
+      version: 15