upgrade embree to v4.3.3 and fix fmt formatter for RTCError (#6901)

* use rtcGetErrorString instead
* upgrade embree to v4.3.3

Author: daizhirui

3rdparty/embree/embree.cmake

@@ -67,8 +67,8 @@ endif()
 ExternalProject_Add(
     ext_embree
     PREFIX embree
-    URL https://github.com/embree/embree/archive/refs/tags/v4.3.1.tar.gz
-    URL_HASH SHA256=824edcbb7a8cd393c5bdb7a16738487b21ecc4e1d004ac9f761e934f97bb02a4
+    URL https://github.com/embree/embree/archive/refs/tags/v4.3.3.tar.gz
+    URL_HASH SHA256=8a3bc3c3e21aa209d9861a28f8ba93b2f82ed0dc93341dddac09f1f03c36ef2d
     DOWNLOAD_DIR "${OPEN3D_THIRD_PARTY_DOWNLOAD_DIR}/embree"
     UPDATE_COMMAND ""
     CMAKE_ARGS

cpp/open3d/t/geometry/RaycastingScene.cpp

@@ -1180,31 +1180,7 @@ template <>
 struct formatter<RTCError> {
     template <typename FormatContext>
     auto format(const RTCError& c, FormatContext& ctx) {
-        const char* name = nullptr;
-        switch (c) {
-            case RTC_ERROR_NONE:
-                name = "RTC_ERROR_NONE";
-                break;
-            case RTC_ERROR_UNKNOWN:
-                name = "RTC_ERROR_UNKNOWN";
-                break;
-            case RTC_ERROR_INVALID_ARGUMENT:
-                name = "RTC_ERROR_INVALID_ARGUMENT";
-                break;
-            case RTC_ERROR_INVALID_OPERATION:
-                name = "RTC_ERROR_INVALID_OPERATION";
-                break;
-            case RTC_ERROR_OUT_OF_MEMORY:
-                name = "RTC_ERROR_OUT_OF_MEMORY";
-                break;
-            case RTC_ERROR_UNSUPPORTED_CPU:
-                name = "RTC_ERROR_UNSUPPORTED_CPU";
-                break;
-            case RTC_ERROR_CANCELLED:
-                name = "RTC_ERROR_CANCELLED";
-                break;
-        }
-        // return formatter<string_view>::format(name, ctx);
+        const char* name = rtcGetErrorString(c);
         return format_to(ctx.out(), name);
     }