ci: add clang-tidy workflow

Author: sjinks

.github/workflows/clang-tidy.yml

@@ -0,0 +1,43 @@
+name: clang-tidy
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  clang-tidy:
+    name: Run clang-tidy
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@cb605e52c26070c328afc4562f0b4ada7618a84e # v2.10.4
+        with:
+          egress-policy: block
+          allowed-endpoints: >
+            api.github.com:443
+            azure.archive.ubuntu.com:80
+            esm.ubuntu.com:443
+            github.com:443
+            motd.ubuntu.com:443
+            objects.githubusercontent.com:443
+            packages.microsoft.com:443
+
+      - name: Check out the source code
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Install dependencies
+        uses: ./.github/actions/install-dependencies
+
+      - name: Configure
+        run: cmake -B build -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+
+      - name: Run clang-tidy
+        run: clang-tidy -p build $(jq -r '.[].file' build/compile_commands.json) --warnings-as-errors='*'