ci: build on arm64 (#7482)

* ci: build on arm64

* ci: build on arm64

* ci: build on arm64

Author: DennisOSRM

.github/workflows/osrm-backend.yml

@@ -332,6 +332,16 @@ jobs:
             ENABLE_CONAN: ON
             NODE_PACKAGE_TESTS_ONLY: ON
 
+          - name: conan-linux-arm64-release
+            continue-on-error: false
+            node: 24
+            runs-on: ubuntu-24.04-arm
+            BUILD_TYPE: Release
+            CCOMPILER: clang-18
+            CXXCOMPILER: clang++-18
+            ENABLE_CONAN: ON
+            ENABLE_LTO: OFF
+
           - name: conan-macos-x64-release-node
             build_node_package: true
             continue-on-error: true