feat(ci): build bindings for ARM linux (#7652)

Author: DennisOSRM

.github/workflows/osrm-backend.yml

@@ -396,10 +396,11 @@ jobs:
             CXXCOMPILER: clang++-18
             NODE_PACKAGE_TESTS_ONLY: ON
 
-          - name: linux-arm64-release
+          - name: linux-arm64-release-bindings
+            build_bindings: true
             continue-on-error: false
             node: 24
-            runs-on: ubuntu-24.04-arm
+            runs-on: ubuntu-26.04-arm
             BUILD_TYPE: Release
             CCOMPILER: clang-18
             CXXCOMPILER: clang++-18

pyproject.toml

@@ -90,9 +90,17 @@ LD_LIBRARY_PATH=/usr/local/lib64:${LD_LIBRARY_PATH} \
 CCACHE_DIR=/ccache \
 CMAKE_ARGS="-DCMAKE_TOOLCHAIN_FILE=$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=x64-linux-release"\
 """
+
 before-build = "ccache -s && ccache -M 500M"
 repair-wheel-command = "auditwheel repair -w {dest_dir} {wheel}"
 
+# Override the triplet for aarch64 — the base environment hard-codes
+# x64-linux-release which only works on x86_64.  The override appends a
+# second CMAKE_ARGS whose value shadows the base one.
+[[tool.cibuildwheel.overrides]]
+select = "*-manylinux_aarch64"
+environment = 'CMAKE_ARGS="-DCMAKE_TOOLCHAIN_FILE=$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=arm64-linux-release"'
+
 [tool.cibuildwheel.macos]
 # Build deps come from vcpkg (same pattern as Windows). VCPKG_ROOT is
 # exported on the runner by lukka/run-vcpkg in the workflow and inherited