Add toy detector and ITk to CI builds

This commit adds the toy detector and the ATLAS ITk to the CI builds to
prevent code rot.

Author: stephenswat

.github/workflows/builds.yml

@@ -120,6 +120,7 @@ jobs:
             ${{ matrix.platform.options }} \
             -DTRACCC_USE_SYSTEM_ACTS=ON \
             -DDETRAY_USE_SYSTEM_NLOHMANN=ON \
+            -DTRACCC_SUPPORTED_DETECTORS="default_detector;odd_detector;telescope_detector;toy_detector;itk_detector" \
             -S ${GITHUB_WORKSPACE} \
             -B build
       - name: Build

device/sycl/src/utils/detector_types.hpp

@@ -18,6 +18,7 @@ namespace traccc::sycl {
  * work...
  */
 struct default_detector_kernel_tag {};
+struct toy_detector_kernel_tag {};
 struct telescope_detector_kernel_tag {};
 struct odd_detector_kernel_tag {};
 struct itk_detector_kernel_tag {};
@@ -30,6 +31,11 @@ struct detector_tag_selector<traccc::default_detector> {
     using type = default_detector_kernel_tag;
 };
 
+template <>
+struct detector_tag_selector<traccc::toy_detector> {
+    using type = toy_detector_kernel_tag;
+};
+
 template <>
 struct detector_tag_selector<traccc::telescope_detector> {
     using type = telescope_detector_kernel_tag;