Update Kokkos library in LAMMPS to v3.6.0

lib/kokkos/cmake/Modules/FindTPLTHREADS.cmake

@@ -0,0 +1,15 @@
+INCLUDE(FindPackageHandleStandardArgs)
+INCLUDE("${CMAKE_SOURCE_DIR}/cmake/tpls/FindTPLPthread.cmake")
+
+IF (TARGET Threads::Threads)
+  SET(FOUND_THREADS TRUE)
+ELSE()
+  SET(FOUND_THREADS FALSE)
+ENDIF()
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(TPLTHREADS DEFAULT_MSG FOUND_THREADS)
+#Only create the TPL if we succeed
+IF (FOUND_THREADS)
+  KOKKOS_CREATE_IMPORTED_TPL(THREADS INTERFACE LINK_OPTIONS
+          ${TPL_Pthread_LIBRARIES})
+ENDIF()